Pest Control in Crops Grown in Northwestern New Mexico, 2008

Transcription

1 Pest Control in Crops Grown in Northwestern New Mexio, 8 Annul Dt Report -8 Rihrd N. Arnold, Mihel K. O Neill, Dniel Smel, nd Kevin Lomrd Coopertive Extension Servie College of Agriulturl, Consumer nd Environmentl Sienes Tle of Contents Pge... BASF, Brodlef Weed Control in Spring-Seeded Alflf... BASF, Brodlef Weed Control in Dry Bens... BASF nd Gown, Brodlef Weed Control in Field Corn with Preemergene Followed y Sequentil Postemergene Heriides...3 Byer CropSiene, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Tretments...4 Byer CropSiene, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Heriides...5 DuPont Crop Protetion, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Heriides...5 Monsnto, Brodlef Weed Control in Field Corn with Postemergene Heriides...6 DuPont Crop Protetion, Brodlef Weed Control in Express- (Trienuron) Tolernt Sunflowers with Preemergene Followed y Sequentil Postemergene Applitions of Express...7 DuPont Crop Protetion, Jim Hill Mustrd Control in Winter Whet...7 DuPont Crop Protetion, Control of Downy Brome in Intermedite Whetgrss t the Steve Trudeu Rnh in Montezum County, CO...8 DuPont Crop Protetion, Control of Cnd Thistle in Irrigted Psture t the Joe Lnier Frm in Montezum County, CO...8 Dow AgroSienes, Perent Stnd Estlishment of Four Rngelnd Grsses Under Seleted Heriides...9 Dow AgroSienes, Perent Stnd Estlishment of Five Rngelnd Grsses Under Seleted Heriides...9 Referenes...9 Notie to users of this report...9 INTRODuCTION Weeds use more totl rop losses thn ny other griulturl pest (Arnold, 8; Hll et l., 5; Currie, 4; Lorenzi nd Jeffery, 7). Weeds redue rop yields nd qulity, hror insets nd plnt diseses, nd use irrigtion nd hrvesting prolems (Chndler et l., 4; Lorenzi nd Jeffery, 7; Currie, 5; Mssing et l., 9, 3). As result, weeds redue the totl vlue of griulturl produts in the United Sttes y to 5% (Lorenzi nd Jeffery, 7). Estimted verge losses during 5 to 9 in the potentil prodution of field orn, pottoes, nd onion rnged from 7 to 6% in the Mountin Sttes Region, whih inludes New Mexio (Chndler et l., 4). Sn Jun County rnks first in potto prodution, fourth in lflf prodution, nd seond in orn prodution mong ll New Mexio ounties (New Mexio Agriulturl Sttistis, 7). An estimted 9% of ll tillge opertions re for weed ontrol (J.G. Foster, personl ommunitions, 5 7). Heriides n redue the numer of required tillge opertions nd n e used where ultivtion is not possile, suh s within rop rows or in solid-seeded rops. With inresing fuel nd lor osts, heriides re often more eonomil thn other methods of weed ontrol. Mny heriides re pproved for use on rops grown on medium- nd fine-textured, high-orgni soils. Little informtion is ville, however, regrding their effetiveness nd sfety on low-orgni, orse-textured soils tht re ommon to northwestern New Mexio. The Environmentl Protetion Ageny (EPA) hs eome more stringent with regrd to reserh dt required for pestiide pprovl. Thus, it hs eome ritil tht stte Agriulturl Siene Centers work losely Respetively, College Professor, Deprtment of Entomology, Plnt Pthology nd Weed Siene, nd Superintendent, Agriulturl Siene Center t Frmington; Professor, Deprtment of Plnt nd Environmentl Sienes; College Professor, Deprtment of Plnt nd Environmentl Sienes; nd Assistnt Professor, Agriulturl Siene Center t Frmington, ll of New Mexio Stte University. To find more resoures for your usiness, home, or fmily, visit the College of Agriulturl, Consumer nd Environmentl Sienes on the World Wide We t es.nmsu.edu

2 with ommeril ompnies developing new pestiides in order to otin the reserh dt required y the EPA. This oopertion will enefit the griulturl industry of the stte nd ssist EPA pestiide registrtion. Before, the use of heriides in northwestern New Mexio ws limited. Most growers were still using,4-d in orn for rodlef weed ontrol, while nnul grsses were left in hek. In lflf, urning winter nnul mustrd nd downy rome with propne ws not unommon. An heriide field-sreening progrm hs provided essentil informtion on the tivity of new nd old heriides on rops grown in northwestern New Mexio (Arnold, 8). As new lnd on the Nvjo Indin Irrigtion Projet omes under ultivtion, weed nd inset prolems re vried nd my hnge with eh suessive rop. It is only through ontinued reserh tht the demnd for relile informtion on the use of pestiides in northwestern New Mexio n e met. I wish to express my sinere ppreition to the following ompnies for providing tehnil ssistne, produts, nd/or finnil ssistne: Byer CropSienes, BASF, E.I. DuPont, Gown, BLM/FFO, FMC, Monsnto, Dow AgroSienes, Nvjo Agriulturl Produts Industry, Pioneer Hi-Bred, Syngent Crop Protetion, nd Southwest Seed. BASF, Brodlef Weed Control in Spring- Seeded Alflf Seedling lflf requires effetive rod-spetrum weed ontrol for suessful estlishment; however, few heriides re registered for postemergene rodlef weed ontrol. Field trils were onduted to evlute rodlef weed ontrol to Rptor lone or in omintion. Ojetives Determine effiy of Rptor lone or in omintion pplied to spring-seeded lflf. Determine lflf tolerne to pplied seleted heriides nd lflf yield. Mterils nd methods A field experiment ws onduted in 8 on Wll sndy lom (less thn % orgni mtter) soil t Frmington, NM, to evlute the response of spring-seeded lflf nd nnul rodlef weeds to postemergene pplitions of Rptor lone or in omintion. The experimentl design ws rndomized omplete lok with three replitions. Individul plots were ft wide y 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 3 psi. Alflf (vr. WL 343HQ) ws plnted t l/ with Mssey Ferguson grin drill on My 5. Postemergene tretments were pplied on June 4 when lflf ws in the 3rd to 4th trifoliolte lef stge nd weeds were smll (<3 4 in.). The mximum nd minimum ir tempertures during tretment pplition were 9 F nd 6 F, respetively. A totl of pproximtely 3 in. of sprinkler-pplied wter were pplied to ll tretments form My 5 to August 5. Blk nightshde, redroot nd prostrte pigweed, nd ommon lmsqurters infesttions were hevy nd Russin thistle infesttions were light throughout the experimentl re. Crop injury nd weed ontrol evlutions were mde on July 4. Alflf ws hrvested with n Almo self-propelled plot hrvester on August 5. A gr smple ws tken from eh plot to determine protein ontent nd reltive feed vlue. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Results of rop injury nd weed ontrol evlutions re given in Tle. No rop injury ws noted from ny of the tretments. All tretments gve good to exellent ontrol of Russin thistle, redroot nd prostrte pigweed, nd lk nightshde. Rptor pplied lone t.3 l i/ gve poor ontrol of ommon lmsqurters (Tle ). Yield nd protein ontent: Results of yield re given in Tle. With the hevy rodlef weed infesttion, the weedy hek hd the highest yield of 3.7 t/. BASF, Brodlef Weed Control in Dry Bens Approximtely % of New Mexio s dry en prodution ours in northwestern New Mexio. Most of this prodution ours under sprinkler irrigtion on orsetextured soils. Pinto en growers usully inorporte one or two heriides in omintion preplnt, nd then follow with one mehnil ultivtion for nnul weed ontrol. Weeds ompete vigorously with dry ens, nd yield redutions exeeding 7% hve een reorded. Mny growers re not hieving effetive fullseson weed ontrol, whih hs led to the development of Pursuit, Rptor, nd, reently, Vlor for weed ontrol in dry edile ens. Ojetives Determine rodlef weed ontrol of pplied seleted heriides. Determine dry en tolerne to pplied seleted heriides nd dry en yield. Annul Dt Report -8 Pge

3 Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of dry edile ens (vr. Bill Z) nd nnul rodlef weeds to preemergene nd preemergene followed y sequentil postemergene heriides. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with four replitions. Individul plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Dry ens were plnted with flexi-plnters on My 7. Preemergene tretments were pplied on My 9 nd immeditely inorported with.75 in. of sprinkler-pplied wter. Sequentil postemergene tretments were pplied on July fter ultivtion when dry ens were in the 4th trifoliolte lef stge nd weeds were smll (< in.). Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Air temperture rnges during preemergene nd postemergene pplitions were 86 to 44 F nd 88 to 54 F, respetively. A totl of pproximtely 3 in. of wter were pplied with sprinkler to ll plots during the growing seson. Crop injury nd weed ontrol evlutions were mde on June 3 nd July 3. Preemergene followed y sequentil postemergene tretments were evluted on July 3. Dry ens were hnd hrvested on August 7 nd left in the field until Septemer 4 when they were thrshed nd weighed. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol evlutions: Weed ontrol evlutions re given in Tles nd 3. Only Vlor nd Outlook in omintion with Prowl H O t.5,.56, nd.8 l i/ showed injury symptoms of less thn % (dt not shown). All tretments gve exellent ontrol of redroot nd prostrte pigweed, ommon lmsqurters, nd lk nightshde. Russin thistle ontrol ws poor with those preemergene tretments ontining Outlook, Prowl, nd Prowl H O regrdless of rte nd omintion. Vlor pplied preemergene t.5 l i/ or in omintion with Prowl or Prowl H O t.8 l i/ gve exellent ontrol of Russin thistle (Tle ). All tretments gve 85% or etter ontrol of redroot nd prostrte pigweed, ommon lmsqurters, nd lk nightshde. Russin thistle ontrol inresed signifintly when Rptor t.3 l i/ plus Bsgrn t.5 l i/ ws inluded s sequentil postemergene tretment to preemergene tretments of Outlook, Prowl, nd Prowl H O (Tle 3). Crop yields: Yields re given in Tle 3. Yields were,65 to 3,99 l/ higher in the heriide-treted plots ompred to the weedy hek. BASF nd Gown, Brodlef Weed Control in Field Corn with Preemergene Followed y Sequentil Postemergene Heriides Mny heriides n e used in sequentil tretments. These trils exmined preemergene heriides followed y sequentil postemergene tretments. If weeds espe the preemergene tretment, postemergene tretment my then e used to ssist in weed ontrol. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in field orn. Determine orn tolerne to pplied seleted heriides nd orn yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of field orn (Pioneer 36V75) nd nnul rodlef weeds to preemergene followed y sequentil postemergene heriides. Soils were Dok silt lom with ph of 7.4 nd n orgni mtter ontent of less thn %. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with four replitions. Individul plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Field orn ws plnted with flexi-plnters equipped with disk openers on My. Approximtely 35 in. of wter were pplied with sprinkler during the growing seson. Preemergene heriides were pplied on My 4 nd immeditely inorported with.75 in. of sprinkler-pplied wter. Soil hd mximum nd minimum temperture of 7 F nd 56 F, respetively. Postemergene tretments were pplied on June when field orn ws in the 4th lef stge nd weeds were smll (< in.). Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Preemergene nd preemergene followed y sequentil postemergene tretments were evluted visully on June nd July. Crop injury ws evluted on June. Stnd ounts were mde on June y ounting individul plnts per ft of the third row of eh plot. Results otined were sujeted to nlysis of vrine t P =.5. Annul Dt Report -8 Pge 3

4 Results nd disussion Weed ontrol nd injury evlutions: Weed ontrol nd rop injury evlutions re given in Tles 4 nd 5. Stnd ounts re given in Tle 4. There were no signifint differenes mong tretments for stnd ount. On June, preemergene tretments of BAS 78H t fl oz/ nd 3 fl oz/ nd BAS 84H in omintion with Gurdsmn Mx t 3 plus 56 fl oz/ hd the highest rop injury rtings of 9% (Tle 4). All preemergene tretments gve exellent ontrol of ll rodlef weeds employed in this study. On July, BAS 84H in omintion with Gurdsmn Mx gve only 85% ontrol of redroot pigweed. All tretments gve exellent ontrol of Russin thistle, exept BAS 78H nd the weedy hek (Tle 5). Crop yields: Yields re given in Tle 5. Yields were 44 to 94 u/ higher in the heriide-treted plots ompred to the weedy hek. Byer CropSiene, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Tretments Mny heriides n e used in sequentil tretments. These trils exmined preemergene heriides followed y sequentil postemergene tretments. If weeds espe the preemergene tretment, postemergene tretment my then e used to ssist in weed ontrol. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in field orn. Determine orn tolerne to pplied seleted heriides nd orn yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of field orn (Pioneer 36V75) nd nnul rodlef weeds to preemergene, preemergene followed y sequentil postemergene, nd postemergene heriides. Soils were Dok silt lom with ph of 7.4 nd n orgni mtter ontent of less thn %. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with four replitions. Individul plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Field orn ws plnted with flexi-plnters equipped with disk openers on My. A totl of pproximtely 35 in. of wter were pplied with sprinkler during the growing seson. Preemergene heriides were pplied on My 4 nd immeditely inorported with.75 in. of sprinkler-pplied wter. Soil hd mximum nd minimum temperture of 7 F nd 56 F, respetively. Erly postemergene tretments were pplied on June when field orn ws in the 4th lef stge nd weeds were smll (< in.). Lte postemergene tretments were pplied on June 3, when field orn ws in the 7th lef stge nd weeds were less thn 5 in. tll. Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Preemergene tretments were evluted visully on June nd July. Erly nd lte postemergene tretments were evluted on July nd 3. Crop injury ws evluted on June for preemergene tretments nd July nd 3 for postemergene tretments. Stnd ounts were mde on June y ounting individul plnts per ft of the third row of eh plot. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Weed ontrol nd rop injury evlutions re given in Tles 6 nd 7. Stnd ounts re given in Tle 6. On June, Blne Pro plus trzine pplied t.5 plus 6 oz/ hd the lowest stnd ount (9) mong tretments. Blne Pro plus trzine pplied t.5 plus 6 oz/ hd the highest perentge of injury mong tretments. All tretments gve exellent ontrol of redroot nd prostrte pigweed, lk nightshde, nd ommon lmsqurters. Russin thistle ontrol ws poor with trzine pplied t 3 oz/ (Tle 6). On July, redroot pigweed ontrol ws exellent with ll tretments exept trzine pplied postemergene t 3 oz/ nd the weedy hek. Prostrte pigweed nd Russin thistle ontrol were exellent with ll tretments exept trzine pplied preemergene t 3 oz/ nd the weedy hek. Blk nightshde nd ommon lmsqurters ontrol were good to exellent with ll tretments exept the weedy hek (Tle 7). On July 3, lte postemergene tretments of Ignite nd Roundup Originl MAx gve exellent ontrol of ll rodlef weeds employed in this study (Tle 7). Crop yields: Yields re given in Tle 7. Yields were 8 to 84 u/ higher in the heriide-treted plots ompred to the weedy hek. Annul Dt Report -8 Pge 4

5 Byer CropSiene, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Heriides Mny heriides n e used in sequentil tretments. These trils exmined preemergene heriides followed y sequentil postemergene tretments. If weeds espe the preemergene tretment, postemergene tretment my then e used to ssist in weed ontrol. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in field orn. Determine orn tolerne to pplied seleted heriides nd orn yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of field orn (Pioneer 36V75) nd nnul rodlef weeds to preemergene, preemergene followed y sequentil postemergene, nd postemergene heriides. Soils were Dok silt lom with ph of 7.4 nd n orgni mtter ontent of less thn %. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with four replitions. Individul plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Field orn ws plnted with flexi-plnters equipped with disk openers on My. Approximtely 35 in. of wter were pplied with sprinkler during the growing seson. Preemergene heriides were pplied on My 4 nd immeditely inorported with.75 in. of sprinklerpplied wter. Soil hd mximum nd minimum temperture of 7 F nd 56 F, respetively. Erly postemergene tretments were pplied on June when field orn ws in the 3rd to 4th lef stge nd weeds were smll (< in.). The lte postemergene tretment ws pplied on June 3 when field orn ws in the 6th lef stge nd weeds were less thn 4 in. tll. Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Preemergene tretments were evluted visully on June nd July. Erly nd lte postemergene tretments were evluted on July nd July 3. Crop injury ws evluted on June for preemergene tretments nd on July for postemergene tretments. Stnd ounts were mde on June y ounting individul plnts per ft of the third row of eh plot. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Weed ontrol nd rop injury evlutions re given in Tles 8 nd 9. Stnd ounts re given in Tle 8. There ws no signifint differene mong tretments for stnd ount. There were no rop injury symptoms from ny of the tretments (dt not shown for July nd 3 rting period). On June, ll preemergene tretments gve exellent ontrol of redroot nd prostrte pigweed, lk nightshde, nd ommon lmsqurters. Outlook t 6 oz/ gve poor ontrol of Russin thistle (Tle 8). On July, Ludis plus trzine pplied t 3 plus 6 oz/ s sequentil postemergene tretment to Outlook pplied preemergene t 6 oz/ inresed Russin thistle ontrol pproximtely 4%. All tretments gve good to exellent ontrol of redroot nd prostrte pigweed, lk nightshde, nd ommon lmsqurters (Tle 9). Crop yields: Yields re given in Tle 9. Yields were 8 to u/ higher in the heriide-treted plots ompred to the weedy hek. DuPont Crop Protetion, Brodlef Weed Control in Field Corn with Preemergene, Preemergene Followed y Sequentil Postemergene, nd Postemergene Heriides Mny heriides n e used in sequentil tretments. These trils exmined preemergene heriides followed y sequentil postemergene tretments. If weeds espe the preemergene tretment, postemergene tretment my then e used to ssist in weed ontrol. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in field orn. Determine orn tolerne to pplied seleted heriides nd orn yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of field orn (Pioneer 36V75) nd nnul rodlef weeds to preemergene, preemergene followed y sequentil postemergene, nd postemergene heriides. Soils were Dok silt lom with ph of 7.4 nd n orgni mtter ontent of less thn %. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with four replitions. Individul plots were four 34-in. rows 3 ft long. Annul Dt Report -8 Pge 5

6 Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Field orn ws plnted with flexi-plnters equipped with disk openers on My. Approximtely 35 in. of wter were pplied with sprinkler during the growing seson. Preemergene heriides were pplied on My 4 nd immeditely inorported with.75 in. of sprinklerpplied wter. Soil hd mximum nd minimum temperture of 7 F nd 56 F, respetively. Postemergene tretments were pplied on June when field orn ws in the 3rd to 4th lef stge nd weeds were smll (< in.). Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Preemergene tretments were evluted visully on June nd July. Postemergene tretments were evluted on July. Crop injury ws evluted on June for preemergene tretments nd on July for postemergene tretments. Stnd ounts were mde on June y ounting individul plnts per ft of the third row of eh plot. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Weed ontrol nd rop injury evlutions re given in Tles nd. Stnd ounts re given in Tle. Mtrix plus Blne pplied t.375 plus.75 oz i/ used the highest injury rting of 9% (Tle ). There were no rop injury symptoms from ny of the tretments for July (dt not shown). There ws no signifint differene mong tretments for stnd ount (Tle ). On June, ll preemergene tretments gve good to exellent ontrol of ll rodlef weeds employed in this study exept the weedy hek (Tle ). On July, ll tretments gve exellent ontrol of redroot nd prostrte pigweed, lk nightshde, nd ommon lmsqurters exept the weedy hek (Tle ). Russin thistle ontrol ws poor with Cinh ATZ pplied preemergene t.4 oz i/ followed y sequentil postemergene tretment of Mtrix plus Hrmony plus Isoxdifen plus trzine plus Roundup PowerMAx pplied postemergene t.9 plus.5 plus.5 plus 8 plus 5 oz i/, Gurdsmn Mx pplied preemergene t 3 oz i/ followed y sequentil postemergene tretment of Roundup PowerMAx t 5 oz i/, nd the postemergene tretment of Mtrix plus Hrmony plus isoxdifen plus trzine plus Roundup Power- MAx t.9 plus.5 plus.5 plus 8 plus 5 oz i/ (Tle ). Crop yields: Yields re given in Tle. Yields were 3 to 79 u/ higher in the heriide-treted plots ompred to the weedy hek. Monsnto, Brodlef Weed Control in Field Corn with Postemergene Heriides Postemergene heriides re most effetive if pplied when the weeds nd field orn re smll. If weeds re not ontrolled, they n eome diffiult to ontrol, nd orn growth my e restrited. This tril exmined the effiy of postemergene heriides pplied when field orn nd weeds were smll, nd evluted their effet on rop injury nd field orn yields. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in field orn. Determine orn tolerne to pplied seleted heriides nd orn yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of field orn (DeKl, DKC 5-59) nd nnul rodlef weeds to postemergene heriides. Soils were Dok silt lom with ph of 7.4 nd n orgni mtter ontent of less thn %. Soils were fertilized sed on soil tests y New Mexio Stte University. The experimentl design ws rndomized omplete lok with three replitions. Individul plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Field orn ws plnted with flexi-plnters equipped with disk openers on My. Approximtely 35 in. of wter were pplied with sprinkler during the growing seson. Dul II Mg ws pplied preemergene to ll tretments t. l i/ on My 4 nd ws immeditely inorported with.75 in. of sprinkler-pplied wter. Erly postemergene tretments were pplied on June when field orn ws in the 3rd to 4th lef stge nd weeds were smll (< in.). The lte postemergene tretments were pplied on June 4 when field orn ws in the 6th lef stge nd weeds were less thn 4 in. tll. Blk nightshde nd redroot nd prostrte pigweed infesttions were hevy, ommon lmsqurters infesttions were moderte, nd Russin thistle infesttions were light throughout the experimentl re. Crop injury nd erly nd lte postemergene tretments were evluted on July nd 4. Stnd ounts were mde on July nd 4 y ounting individul plnts per ft of the third row of eh plot. Results otined were sujeted to nlysis of vrine t P =.5. Annul Dt Report -8 Pge 6

7 Results nd disussion Weed ontrol nd injury evlutions: Weed ontrol nd rop injury evlutions re given in Tles nd 3. Stnd ounts re given in Tles nd 3. There ws no signifint differene mong tretments for stnd ount. There were no rop injury symptoms from ny of the tretments for oth rting periods (Tles nd 3). On June, ll tretments gve exellent ontrol of redroot nd prostrte pigweed, lk nightshde, nd ommon lmsqurters. Roundup PowerMAx pplied t.95 l i/ gve poor ontrol of Russin thistle (Tle ). On June 4, ll tretments gve good to exellent ontrol of ll rodlef weeds employed in this study (Tle 3). Crop yields: Yields re given in Tle 3. Yields were 58 to 73 u/ higher in the heriide-treted plots ompred to the weedy hek. DuPont Crop Protetion, Brodlef Weed Control in Express- (Trienuron) Tolernt Sunflowers with Preemergene Followed y Sequentil Postemergene Applitions of Express Sunflower is rop tht is usully plnted in drylnd situtions under limited rinfll. Sunflower seed is minly hrvested for its oil ontent. Little informtion is ville on the use of heriides for ontrol of rodlef weeds in sunflower on orse-textured soils. Ojetives Determine effiy of seleted heriides for ontrol of nnul rodlef weeds in sunflowers. Determine sunflower tolerne to pplied seleted heriides nd sunflower yield. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of Express- (trienuron) tolernt sunflowers (vr. Pioneer 63N8) nd nnul rodlef weeds to preemergene nd preemergene followed y sequentil postemergene pplitions of Express. Sunflowers were plnted on June with flexi-plnters equipped with disk openers. Soils were fertilized sed on soil tests y New Mexio Stte University. Plots were four 34-in. rows 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Preemergene heriides were pplied on June 3 nd immeditely inorported with.75 in. of sprinkler-pplied wter. Postemergene tretments were pplied on July 3 when sunflowers were in the 3rd to 4th lef stge nd weeds were less thn 4 in. tll. The mximum nd minimum ir tempertures during postemergene pplition were 9 F nd 6 F, respetively. A totl of pproximtely 8 in. of wter were pplied with sprinkler to ll plots during the growing seson. Preemergene tretments were evluted for rop injury nd weed ontrol on July 3 nd August 4. Postemergene tretments of Express were evluted for rop injury nd weed ontrol on August 4. Blk nightshde nd prostrte nd redroot pigweed infesttions were hevy nd ommon lmsqurters nd Russin thistle infesttions were light throughout the experimentl re. Sunflowers were hrvested on Septemer y omining the enter two rows of eh plot using John Deere 33 omine equipped with lod ell. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Crop injury evlutions re given in Tle 4. Weed ontrol evlutions re given in Tles 4 nd 5. No rop injury ws noted from ny of the preemergene or preemergene followed y sequentil postemergene tretments of Express. On July 3, redroot nd prostrte pigweed ontrol were exellent with ll tretments exept Prowl H O pplied t.8 l i/ nd the weedy hek. All tretments exept the weedy hek gve etter thn 9% ontrol of lk nightshde nd ommon lmsqurters. Russin thistle ontrol ws poor with Dul pplied t.5 l i/ (Tle 4). On August 4, the sequentil postemergene tretment of Express pplied t.5 l i/ to Prowl H O nd Dul inresed redroot pigweed, prostrte pigweed, nd Russin thistle ontrol pproximtely 8%, %, nd 46%, respetively (Tle 5). Crop yields: Crop yields re given in Tle 5. Yields were,76 to,336 l/ higher in the heriidetreted plots ompred to the weedy hek. DuPont Crop Protetion, Jim Hill Mustrd Control in Winter Whet Jim Hill mustrd, or tumle mustrd, is troulesome weed in winter whet. If not ontrolled, it n derese whet yields nd interfere with omine opertions. Field trils were onduted to evlute the ontrol of Jim Hill mustrd y seleted heriides in winter whet. Ojetives Determine effiy of seleted heriides for ontrol of Jim Hill mustrd in winter whet. Determine winter whet tolerne to pplied seleted heriides nd winter whet yield. Annul Dt Report -8 Pge 7

8 Mterils nd methods A field experiment ws onduted in 8 on Wll sndy lom soil (less thn % orgni mtter) t Frmington, NM, to evlute the response of winter whet nd Jim Hill mustrd to postemergene heriides. The experimentl design ws rndomized omplete lok with three replitions. Individul plots were ft wide y 3 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 3 psi. Winter whet (vr. Jgline) ws plnted t l/ with Mssey Ferguson grin drill on Septemer, 7. Tretments were pplied on April, 8, when winter whet ws in the 4th to 6th tillering stge nd Jim Hill mustrd ws less thn 3 in. tll. Mximum nd minimum ir tempertures during tretment pplition were 64 F nd 33 F, respetively. A totl of pproximtely 3 in. of wter were pplied with sprinkler to ll tretments during the growing seson. Jim Hill mustrd infesttion ws moderte to hevy, with pproximtely 5 to 5 plnts per squre yrd. Crop injury nd weed ontrol evlutions were mde on My 5. Winter whet ws hrvested on July 4 with John Deere 33 omine equipped with lod ell. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd injury evlutions: Results of rop injury nd weed ontrol evlutions re given in Tle 6. No rop injury ws noted from ny of the tretments. All tretments exept the weedy hek gve good to exellent ontrol of Jim Hill mustrd (Tle 6). Crop yields: Results of yield re given in Tle 6. Yields were 3 to 43 u/ higher in the heriide-treted plots ompred to the weedy hek. DuPont Crop Protetion, Control of Downy Brome in Intermedite Whetgrss t the Steve Trudeu Rnh in Montezum County, CO Over the pst few yers, downy rome hs eome more widespred in ntive grss fields, using hrvest prolems nd delines in prodution of ntive or nonntive grsslnd pstures nd seed lening opertions. If left unheked, downy rome n eome serious wildfire hzrd. Ojetives Determine effiy of seleted heriides for ontrol of downy rome in intermedite whetgrss. Determine intermedite whetgrss tolerne to pplied seleted heriides. Mterils nd methods A field experiment ws onduted in 8 in Montezum County, CO, to evlute the response of downy rome nd intermedite whetgrss to seleted postemergene heriides. The experimentl design ws rndomized omplete lok with three replitions. Individul plots were ft wide y 5 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Tretments were pplied on April 9 when intermedite whetgrss nd downy rome were less thn in. tll. All tretments were pplied with rop oil onentrte t % v/v nd 3-- t % v/v. Tretments were evluted for downy rome ontrol on June 4. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd grss injury evlutions: Weed ontrol nd grss injury evlutions for downy rome ontrol in intermedite whetgrss re given in Tle 7. No rop injury ws noted from ny of the tretments (Tle 7). Aent plus Cimrron t.63 plus. oz i/ nd Aent plus Cimrron plus Krmex t.78 plus.5 plus.8 oz i/ gve 9% or etter ontrol of downy rome (Tle 7). DuPont Crop Protetion, Control of Cnd Thistle in Irrigted Psture t the Joe Lnier Frm in Montezum County, CO Tody over million res on the North Amerin ontinent re struggling ginst invsive plnts tht hve no respet for property oundries. This invsion poses serious thret to the integrity nd produtivity of our ntion s lndspe. One suh invsive noxious weed is Cnd thistle, whih hs spred tremendously throughout Sn Jun County, NM, nd southwestern Colordo. Ojetives Determine effiy of seleted heriides for ontrol of Cnd thistle in irrigted psture. Determine irrigted psture tolerne to pplied seleted heriides. Mterils nd methods A field experiment ws onduted from 7 to 8 in Montezum County, CO, to evlute the response of Cnd thistle nd irrigted psture to seleted postemergene heriides. The experimentl design ws rndomized omplete lok with three replitions. Individul plots were ft wide y 5 ft long. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Tretments Annul Dt Report -8 Pge 8

9 were pplied on Otoer, 7. Tretments were evluted for Cnd thistle ontrol on June 3, 8. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Weed ontrol nd grss injury evlutions: Evlutions for grss injury nd Cnd thistle ontrol in irrigted psture re given in Tle 8. No rop injury ws noted from ny of the tretments (Tle 8). All tretments gve exellent ontrol of Cnd thistle (Tle 8). Dow AgroSienes, Perent Stnd Estlishment of Four Rngelnd Grsses under Seleted Heriides The oil nd gs industry of Sn Jun nd Rio Arri Counties in New Mexio must re-seed well site or pipeline right-of-wy one it hs een distured. Noxious weeds re ontrolled with heriides throughout the growing seson, regrdless of whether well site or pipeline right-of-wy hs just een re-seeded. This study ttempted to determine if these heriides used for noxious weed ontrol on well sites or pipeline rights-of-wy re impting grss re-seeding opertions. Ojetives Evlute seleted rngelnd grss estlishment following seleted heriide pplition. Mterils nd methods A field experiment ws onduted from 7 to 8 t Frmington, NM, to evlute the response of four rngelnd grsses to preemergene pplitions of Milestone, Tordon, nd Trnsline. The experimentl design ws split plot design with rngelnd grsses s whole plots nd heriide tretments s su plots. Individul plots were ft wide y 5 ft long. Arri western whetgrss, Sn Luis slender whetgrss, ottlerush squirreltil, nd Hyrest rested whetgrss were plnted t, 5, 6, nd 8 l pls/ (pure live seed), respetively, on August 3, 7. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Tretments were pplied on August 6, 7, nd immeditely inorported with.75 in. of sprinkler-pplied wter. Soil minimum nd mximum tempertures t time of pplition were 7 F nd 9 F, respetively. Approximtely.66 in. of preipittion were pplied per month from August until Otoer, 7, nd in. from April to 5, 8. Totl preipittion pplied ws pproximtely 6. in. Rngelnd grss ws evluted for perent stnd estlishment on April 5, 8. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Stnd estlishment evlutions: Perent rngelnd grss estlishment vlues re given in Tle 9. All rngelnd grsses showed more tolerne to Trnsline pplied t.3 oz/ thn ny other heriide tretment. Tordon pplied t 3 oz/ injured more rngelnd grss thn did ny other heriide tretment. Bottlerush squirreltil nd Hyrest rested whetgrss were more suseptile to these heriides thn either Arri western whetgrss or Sn Luis slender whetgrss (Tle 9). Dow AgroSienes, Perent Stnd Estlishment of Five Rngelnd Grsses under Seleted Heriides The oil nd gs industry of Sn Jun nd Rio Arri Counties in New Mexio must re-seed well site or pipeline right-of-wy one it hs een distured. Noxious weeds re ontrolled with heriides throughout the growing seson, regrdless of whether well site or pipeline right-of-wy hs just een re-seeded. This study ttempted to determine if these heriides used for noxious weed ontrol on well sites or pipeline rights-of-wy re impting grss re-seeding opertions. Ojetives Evlute seleted rngelnd grss estlishment following seleted heriide pplition. Mterils nd methods A field experiment ws onduted in 8 t Frmington, NM, to evlute the response of five rngelnd grsses to preemergene pplitions of Milestone, Tordon, Trnsline, nd KJM 44. The experimentl design ws split plot design with rngelnd grsses s whole plots nd heriide tretments s su plots. Individul plots were ft wide y 5 ft long. Arri western whetgrss, Sn Luis slender whetgrss, ottlerush squirreltil, Hyrest rested whetgrss, nd Rimrok Indin riegrss were plnted t, 5, 6, 8 nd 6 l pls/ (pure live seed), respetively, on April 8. Tretments were pplied with ompressed ir kpk spryer lirted to deliver 3 gl/ t 35 psi. Tretments were pplied on April 4 nd immeditely inorported with.75 in. of sprinkler-pplied wter. Soil minimum nd mximum tempertures t time of pplition were 4 F nd 66 F, respetively. Approximtely 5 in. of wter t.66 in. per month were pplied from mid-april until mid-july. Rngelnd grss ws evluted Annul Dt Report -8 Pge 9

10 for perent stnd estlishment on July. Results otined were sujeted to nlysis of vrine t P =.5. Results nd disussion Stnd estlishment evlutions: Perent rngelnd grss estlishment vlues re given in Tle. All rngelnd grsses showed more tolerne to Trnsline pplied t.3 oz/ thn ny other heriide tretment. Tordon pplied t 3 oz/ injured more rngelnd grss thn did ny other heriide tretment. Milestone t 5 nd 7 oz/ gve more thn 8% stnd estlishment for Arri Westernwhetgrss. Rimrok Indin Riegrss showed exellent stnd estlishment of 9% to KJM 44 pplied t 8 oz/, nd ws the only rngelnd grss tht ws not injured severely (Tle ). Tle. Control of Annul Brodlef Weeds with Rptor Applied Alone or in Comintion in Spring-Seeded Alflf on July 4, NMSU Agriulturl Siene Center; t Frmington, NM, 8 Rte Crop Injury Sskr Amre Weed Control, Aml Solni Chel Yield Tretments (l i/) (t/) Rptor Rptor + Prowl H O Rptor + Butril Rptor + Prowl H O Rptor + Butril Rptor Rptor + Prowl H O LSD Tretments pplied with rop oil onentrte t.5 % v/v nd 3-- t qt/. Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. Sskr = Russin thistle, Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, nd Chel = ommon lmsqurters. Tle. Control of Annul Brodlef Weeds in Dry Bens with Preemergene nd Preemergene Followed y Sequentil Postemergene Tretments on June 3, NMSU Agriulturl Siene Center; t Frmington, NM, 8 Weed Control, Rte Chel Amre Aml Solni Sskr Tretments (l i/) Vlor Outlook Vlor + Prowl Vlor + Prowl H O Outlook + Prowl Outlook + Prowl H O Vlor/Rptor + Bsgrn Outlook/Rptor + Bsgrn Outlook + Prowl/Rptor + Bsgrn Outlook + Prowl H O/Rptor + Bsgrn Vlor + Prowl H O/Rptor + Bsgrn LSD / / / / / First tretment pplied preemergene nd evluted on June 3, followed y sequentil postemergene tretment. Postemergene tretments were pplied with rop oil onentrte t.5% v/v nd 3-- t % v/v. Bsed on visul sle from, where = no ontrol nd = ded plnts. Chel = ommon lmsqurters, Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, nd Sskr = Russin thistle. Annul Dt Report -8 Pge

11 Tle 3. Control of Annul Brodlef Weeds in Dry Bens with Preemergene nd Preemergene Followed y Sequentil Postemergene Tretments on July 3; NMSU Agriulturl Siene Center t Frmington, NM, 8 Rte Chel Amre Weed Control, Aml Solni Sskr Bill Z Yield Tretments (l i /) (l/) Vlor Outlook Vlor + Prowl Vlor + Prowl H O Outlook + Prowl Outlook + Prowl H O Vlor/Rptor + Bsgrn Outlook/Rptor + Bsgrn Outlook + Prowl/Rptor + Bsgrn Outlook + Prowl H O/Rptor + Bsgrn Vlor + Prowl H O/Rptor + Bsgrn LSD / / / / / ,6 3, 4,38 4,65 3,6 3,38 4,34 4, 3,88 3,99 4, First tretment pplied preemergene nd rted on June 3, followed y sequentil postemergene tretment nd rted on July 3. Postemergene tretments were pplied with rop oil onentrte t.5% v/v nd 3-- t % v/v. Bsed on visul sle from, where = no ontrol nd = ded plnts. Chel = ommon lmsqurters, Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, nd Sskr = Russin thistle. Tle 4. Control of Annul Brodlef Weeds with Preemergene Followed y Sequentil Postemergene Heriides in Field Corn on June, NMSU Agriulturl Siene Center; t Frmington, NM, 8 Rte Stnd Crop Injury f Amre Aml Weed Control f,g Solni Sskr Chel Tretments, (fl oz/) Count BAS 78H BAS 84H + Gurdsmn Mx (pm) Lumx (pm) BAS 78H/Roundup PowerMAx BAS 84H + Gurdsmn Mx (pm)/ Roundup PowerMAx Hrness xtr (pm)/roundup PowerMAx BAS 78H/Roundup PowerMAx + Sttus,e Lumx (pm)/yukon (pm) d,e Gurdsmn Mx (pm)/yukon (pm) d,e Lumx/Yukon (pm) e + Roundup PowerMAx Gurdsmn Mx (pm)/yukon (pm) e + Roundup PowerMAx LSD / /3 39/3 3/ /8 56/8 8/ / ns pm = pkged mix. First tretment pplied preemergene followed y slsh then postemergene tretment. A nonioni surftnt nd mmonium sulfte (AMS) were dded to tretments t.5% v/v nd 5.5 l/, respetively. d A nonioni surftnt ws dded to tretments t.5% v/v. e Tretments re in oz wt/. f Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. g Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Annul Dt Report -8 Pge

12 Tle 5. Control of Annul Brodlef Weeds with Preemergene Followed y Sequentil Postemergene nd Postemergene Heriides in Field Corn on July ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Weed Control f,g Rte Amre Aml Solni Sskr Chel Yield Tretments, (fl oz/) (u/) BAS 78H BAS 84H + Gurdsmn Mx (pm) Lumx (pm) BAS 78H/Roundup PowerMAx BAS 84H + Gurdsmn Mx (pm)/ Roundup PowerMAx Hrness xtr (pm)/roundup PowerMAx BAS 78H/Roundup PowerMAx + Sttus,e Lumx (pm)/yukon (pm) d,e Gurdsmn Mx/Yukon (pm) d,e Lumx (pm)/yukon (pm) e + Roundup PowerMAx Gurdsmn Mx (pm)/yukon (pm) e + Roundup PowerMAx LSD / /3 39/3 3/ /8 56/8 8/ / pm = pkged mix. First tretment pplied preemergene followed y slsh then postemergene tretment. A nonioni surftnt nd mmonium sulfte (AMS) were dded to tretments t.5% v/v nd 5.5 l/, respetively. d A nonioni surftnt ws dded to tretments t.5% v/v. e Tretments re in oz wt/. f Bsed on visul sle from, where = no ontrol nd = ded plnts. Tle 6. Control of Annul Brodlef Weeds with Preemergene Heriides in Field Corn on June ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Rte Stnd Crop Injury Amre Aml Weed Control, Solni Sskr Chel Tretments (oz/) Count Corvus Corvus + trzine Blne Flexx + trzine Blne Flexx + trzine Blne Pro + trzine Atrzine Blne Flexx Lumx Blne Flexx Blne Flexx + trzine LSD Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Annul Dt Report -8 Pge

13 Tle 7. Control of Annul Brodlef Weeds with Preemergene Followed y Sequentil Postemergene nd Postemergene Heriides in Field Corn on July nd 3; NMSU Agriulturl Siene Center t Frmington, NM, 8 Weed Control f,g Rte Amre Aml Solni Sskr Chel Yield Tretments (oz/) (u/) Corvus Corvus + trzine Corvus + trzine Blne Flexx + trzine Blne Flexx + trzine Blne Pro + trzine Atrzine Blne Flexx Lumx Blne Flexx + trzine Blne Flexx/trzine /Ignite,d Blne Flexx + trzine/roundup Originl MAx,d Atrzine,e Blne Flexx + trzine Blne Flexx + trzine,e LSD /6 3/6/ / First tretment pplied preemergene followed y slsh then postemergene tretment. Postemergene tretments pplied June t the V-4 stge of orn. Postemergene tretments pplied June 3 t the V-7 stge of orn. d Ammonium sulfte dded t 3 l/. e A rop oil onentrte dded t 3 oz/. f Bsed on visul sle from, where = no ontrol nd = ded plnts. g Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Tle 8. Control of Annul Brodlef Weeds with Preemergene Heriides in Field Corn on June ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Crop Weed Control, Rte Stnd Injury Amre Aml Solni Sskr Chel Tretments (oz/) Count Blne Flexx 3 Outlook 6 6 Gurdsmn Mx 5 Biep Lite II 5 LSD.5 ns 3 6 Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Annul Dt Report -8 Pge 3

14 Tle 9. Control of Annul Brodlef Weeds with Preemergene Followed y Sequentil Postemergene nd Postemergene Heriides in Field Corn on July ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Weed Control f,g Rte Amre Aml Solni Sskr Chel Yield Tretments (oz/) (u/) Ludis + trzine Ludis Blne Flexx/Ludis + trzine Outlook/Ludis + trzine Ignite 8 + Ludis d Ignite 8 + Ludis + trzine d Roundup Originl MAx + Ludis d Roundup Originl MAx + Ludis + trzine d Ludis + Butril,e Cpreno + trzine Cpreno Cpreno + Roundup Originl MAx d Cpreno + Ignite 8 d Gurdsmn Mx/Roundup Originl MAx d Biep Lite II Mg/Roundup Originl MAx d LSD / / / 48/ First tretment pplied preemergene followed y slsh then sequentil postemergene tretment. Tretments pplied with rop oil onentrte t % v/v nd 3-- t 48 oz/. Tretment pplied with methylted seed oil t % v/v nd 3-- t 48 oz/. d Ammonium sulfte dded t 3 l/. e Tretment pplied lte postemergene on June 3 to the 6th lef stge of orn; ll other postemergene tretments were pplied on June to the 3rd or 4th lef stge of orn. f Bsed on visul sle from, where = no ontrol nd = ded plnts. g Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Tle. Control of Annul Brodlef Weeds with Preemergene Heriides in Field Corn on June ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Crop Weed Control, Rte Stnd Injury Amre Aml Solni Sskr Chel Tretments (oz i/) Count Cinh ATZ.4 Mtrix + Blne Gurdsmn Mx Lumx Biep Lite II LSD.5 ns Bsed on visul sle from, where = no ontrol nd = ded plnts. Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Annul Dt Report -8 Pge 4

15 Tle. Control of Annul Brodlef Weeds with Preemergene Followed y Sequentil Postemergene nd Postemergene Heriides in Field Corn on July ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Weed Control e,f Rte Amre Aml Solni Sskr Chel Yield Tretments (oz i/) (u/) Cinh ATZ/Mtrix + Aent +.4/ isoxdifen + Impt + trzine Cinh ATZ/Mtrix + Hrmony +.4/ isoxdifen + trzine + Roundup PowerMAx d Cinh ATZ/Mtrix + Clrity +.4/ isoxdifen + trzine + Roundup PowerMAx d Mtrix + Blne/Roundup PowerMAx d /5 6 Mtrix + Hrmony + isoxdifen trzine + Roundup PowerMAx,d Mtrix + Clrity + isoxdifen trzine + Roundup PowerMAx,d Gurdsmn Mx/Mtrix + 3/ Aent + isoxdifen + Impt + trzine Biep Lite II Mg/Mtrix + Aent + 3/ isoxdifen + Impt + trzine Lumx/Roundup PowerMAx d 3/ Gurdsmn Mx/Roundup PowerMAx d 3/ Biep Lite II Mg/Roundup PowerMAx d 3/ LSD.5 74 First tretment pplied preemergene followed y slsh then sequentil postemergene tretment. Tretments pplied postemergene on June. Tretments pplied with methylted seed oil t % v/v nd mmonium sulfte t 3 oz/. d Tretments pplied with mmonium sulfte t 3 oz/. e Bsed on visul sle from, where = no ontrol nd = ded plnts. f Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Tle. Control of Annul Brodlef Weeds with Postemergene Heriides in Roundup Redy Field Corn on June ; NMSU Agriulturl Siene Center t Frmington, NM, 8 Crop Weed Control,d Rte Stnd Injury Amre Aml Solni Sskr Chel Yield Tretments (l i/) Count (u/) Impt Impt + Roundup PowerMAx Impt Impt + Roundup PowerMAx Sttus Sttus + Roundup PowerMAx Sttus Sttus + Roundup PowerMAx Roundup PowerMAx LSD.5 ns Tretments pplied with rop oil onentrte t % v/v nd mmonium sulfte t 5 l/. Tretments pplied with mmonium sulfte t 5 l/. Bsed on visul sle from, where = no ontrol nd = ded plnts. d Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Annul Dt Report -8 Pge 5

16 Tle 3. Control of Annul Brodlef Weeds with Postemergene Heriides in Roundup Redy Field Corn on June 4; NMSU Agriulturl Siene Center t Frmington, NM, 8 Crop Weed Control,d Rte Stnd Injury Amre Aml Solni Sskr Chel Yield Tretments (l i/) Count (u/) Impt Impt + Roundup PowerMAx Impt Impt + Roundup PowerMAx Sttus Sttus + Roundup PowerMAx LSD.5 ns Tretments pplied with rop oil onentrte t % v/v nd mmonium sulfte t 5 l/. Tretments pplied with mmonium sulfte t 5 l/. Bsed on visul sle from, where = no ontrol nd = ded plnts. d Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Sskr = Russin thistle, nd Chel = ommon lmsqurters. Tle 4. Control of Annul Brodlef Weeds in Pioneer 63N8 Express Tolernt Sunflowers with Preemergene Heriides on July 3; NMSU Agriulturl Siene Center t Frmington, NM, 8 Crop Weed Control, Rte Injury Amre Aml Solni Chel Sskr Tretments (l i/) Express.3 84 Express.6 85 Sprtn.94 Sprtn.4 Dul Prowl H O LSD.5 3 Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Chel = ommon lmsqurters, nd Sskr = Russin thistle. Tle 5. Yield nd Control of Annul Brodlef Weeds in Pioneer 63N8 Express Tolernt Sunflowers with Preemergene nd Preemergene Followed y Sequentil Applitions of Express on August 4; NMSU Agriulturl Siene Center t Frmington, NM, 8 Weed Control, Rte Amre Aml Solni Chel Sskr Yield Tretments (l i/) (l/) Express Express Sprtn Sprtn Sprtn/Express Sprtn/Express Sprtn/Express Sprtn/Express Dul/Express Prowl H O/Express LSD /.7.4/.5.94/.7.94/.5.5/.5.8/ ,456 3,55 3,53 3,66 3,558 3,63 3,488 3,494 3,456 3,46,8 33 First tretment pplied preemergene followed y sequentil postemergene tretment of Express with rop oil onentrte t % v/v. Bsed on visul sle from, where = no ontrol nd = ded plnts. Amre = redroot pigweed, Aml = prostrte pigweed, Solni = lk nightshde, Chel = ommon lmsqurters, nd Sskr = Russin thistle. Annul Dt Report -8 Pge 6

17 Tle 6. Control of Jim Hill Mustrd in Winter Whet with Seleted Heriides on My 5; NMSU Agriulturl Siene Center t Frmington, NM, 8 Tretments Rte (oz i/) Crop Injury Weed Control SSYAL,d Yield (u/) Sn 845H + DPx M636 + DPxL53 + Ally xp Sn 845H + DPx M636 + DPxL53 + Ally xp Sn 845H + DPx M636 + DPxL53 + Ally xp +,4-D ester Sn 845H + DPx M636 + DPxL53 + Ally xp +,4-D ester Sn 845H + DPx M636 + DPxL53 + Ally xp + MCP ester Sn 845H + DPx M636 + DPxL53 + Ally xp + MCP ester Huskie Huskie DPx M636 DPx M636 + Prowl H O Huskie + Prowl H O LSD Tretments pplied with non-ioni surftnt (NIS) t.5% v/v. Tretments pplied with 3-- t qt/. Bsed on visul sle from to, where = no ontrol or rop injury nd = l ded plnts. d SSYAL = Jim Hill mustrd. Tle 7. Control of Downy Brome in Intermedite Whetgrss on June 4; t the Steve Trudeu Rnh in Montezum County, CO, 8 Intermedite Tretments Rte (oz i/) Whetgrss Injury Weed Control Brote Aent + Cimrron Aent + Cimrron Aent + Cimrron Aent + Cimrron Aent + Cimrron + Krmex Aent + Cimrron + Krmex Outrider KJM 44 KJM 44 LSD Tretments pplied with rop oil onentrte t % v/v nd 3-- t % v/v. Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. Brote = downy rome. Annul Dt Report -8 Pge 7

18 Tle 8. Control of Cnd Thistle in Irrigted Psture on June 3; t the Joe Lnier Frm in Montezum County, CO, 8 Tretments Rte (oz i/) Irrigted Psture Injury Weed Control CIRAR, KJM44 KJM 44 KJM 44 KJM 44 KJM 44 KJM 44 Milestone Milestone Telr xp LSD Bsed on visul sle from, where = no ontrol or rop injury nd = ded plnts. CIRAR = Cnd thistle. Tle 9. Perent Stnd Estlishment of Four Rngelnd Grsses Under Preemergene Applitions of Milestone, Tordon, nd Trnsline on April 5; t Frmington, NM, 8 Rte Perent Rngelnd Grss Estlishment Averge Tretments (oz/) AWW SLSW BBST HCCW Mens Milestone Milestone Milestone Trnsline Tordon Untreted Tretment mens AWW = Arri western whetgrss, SLSW = Sn Luis slender whetgrss, BBST = ottlerush squirreltil, nd HCCW = Hyrest rested whetgrss. Mens followed y the sme numer re not signifintly different s determined y the LSD test t.5. Tle. Perent Stnd Estlishment of Five Rngelnd Grsses Under Preemergene Applitions of Milestone, Tordon, Trnsline, nd KJM 44 on July ; t Frmington, NM, 8 Rte Perent Rngelnd Grss Estlishment Averge Tretments (oz/) AWW SLSW BBST HCCW RRIR Mens Milestone Milestone Trnsline Tordon KJM Untreted Tretment mens AWW = Arri western whetgrss, SLSW = Sn Luis slender whetgrss, BBST = ottlerush squirreltil, HCCW = Hyrest rested whetgrss, nd RRIR = Rimrok Indin riegrss. Mens followed y the sme numer re not signifintly different s determined y the LSD test t.5. Annul Dt Report -8 Pge 8

19 REFERENCES Arnold, R.N. 8. Annul weeds industry reserh report. Frmington: New Mexio Stte University Agriulturl Siene Center, New Mexio Stte University Agriulturl Experiment Sttion. Chndler, J.M., A.S. Hmill, nd A.G. Thoms. 4. Crop losses due to weeds in Cnd nd the United Sttes: Speil report of the Losses Due to Weeds Committee. Chmpign, IL: Weed Siene Soiety of Ameri. Currie, R.S. 4. Comprisons of 4 heriide tnk mixes for weed ontrol in Round-up redy orn. In Field Dy 4, Southwest Reserh-Extension Center, Report of Progress (pp ). Mnhttn, KS: Knss Agriulturl Experiment Sttion, Knss Stte University. Currie, R.S. 5. Comprison of 33 heriide tnk mixes for weed ontrol in glyphoste resistnt orn. In Field Dy 5, Southwest Reserh-Extension Center, Report of Progress 945 (pp. 3 33). Mnhttn, KS: Knss Agriulturl Experiment Sttion, Knss Stte University. Lorenzi, H.J., nd L.S. Jeffery. 7. Weeds of the United Sttes nd their ontrol. New York: Vn Nostrnd Reinhold Co., In. Mssing, R.A., R.S. Currie, nd T.P. Trooien. 9. Effet of Plmer mrnth density on orn wter use effiieny. Proeedings of the North Centrl Weed Siene Soiety, 54, 43. Mssing, R.A., R.S. Currie, nd T.P. Trooien. 3. Wter use nd light intereption under Plmer mrnth (Amrnthus plmeri) nd orn ompetition. Weed Siene, 5, Rihrd N. Arnold is College Professor in the Deprtment of Entomology, Plnt Pthology nd Weed Siene nd Superintendent of New Mexio Stte University s Agriulturl Siene Center t Frmington. He erned his M.S. from New Mexio Stte University in. His reserh interests inlude weed siene nd pest ontrol mngement in rop nd non-rop res. NOTICE TO users OF THIS REPORT This report hs een prepred s n id to the Agriulturl Siene Center stff for nlyzing the results of vrious reserh during the pst yer nd for reording pertinent dt for future referene. This is not forml Agriulturl Experiment Sttion report of reserh results. Informtion in this report represents results from only one yer s reserh. The reder is utioned ginst drwing onlusions or mking reommendtions s result of dt in the report. In mny instnes, dt in this report represent only one of severl yers of reserh results tht will onstitute the finl forml report. It should e pointed out, however, tht stff memers hve mde every effort to hek the ury of the dt presented. This report is not intended s forml relese; therefore, none of the dt or informtion herein is uthorized for relese or pulition without the written pprovl of the New Mexio Agriulturl Experiment Sttion. Brnd nmes ppering in pulitions re for produt identifition purposes only. No endorsement is intended, nor is ritiism implied of similr produts not mentioned. Persons using suh produts ssume responsiility for their use in ordne with urrent lel diretions of the mnufturer. Mention of proprietry pestiide does not imply registrtion under FIFRA s mended. Annul Dt Report -8 Pge 9