Management of Root-Knot Nematodes With Novel Nematicides
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1 Management of Root-Knot Nematodes With Novel Nematicides J. Ole Becker, Department of Nematology, UC Riverside, Antoon Ploeg, Department of Nematology, UC Riverside, Joe Nunez, UCCE Bakersfield, CA
2 SCREC Sandy loam infested with the Southern root-knot nematode, Meloidogyne incognita (43J2/100 cc); RCB, 5 replications Surface drip application Vigorous growth 5 wks after planting
3 Summer 2011 tomato trial at UC South Coast R&E Center nematicide application before incorporation
4 Shafter Research Station South Coast REC
5 20011 Treatments Trmt# Product 5 days before transplant (incorporated) 14 days after transplant (sprinkler can) 21 days after transplant (sprinkler can) 28 days after transplant (foliar) 1 Non-treated check 2 Vydate L 3 pt/a 4 pt/a 3 RDL lb ai/a 1.0 lb ai/a 4 MCW lbs a.i./a 5 NemaQ 3 gal/a 3 gal/a 6 Sesame 1 gal/a 1 gal/a 7 Actinovate 12 oz/a 8 Vydate + Movento 3 pt/a 2.5 oz/a 9 Ecozin Plus 56 fl oz/a 56 fl oz/a 10 Nortica 75 lbs/a
6 Root Galling 6 weeks after Transplanting Gall Rating de b bcd a b e cde bc cde de 0 Control Vydate L RDL-29 MCW-2 NemaQ Sesamine Actinovate Vydate + Movento Ecozin Nortica Mean separation at LSD 0.05
7 Root gall Rating at Harvest d b cd bc bcd bcd bc d cd Gall Rating a Control Vydate L RDL-29 MCW-2 NemaQ Sesamine Actinovate Vydate + Movento Ecozin Nortica Mean separation at LSD 0.05
8 Tomato Fruit Yield (Kg/plant) Kg/plant Control Vydate L RDL-29 MCW-2 NemaQ Sesamine Actinovate Vydate + Movento Ecozin Nortica Yields are not significant from each other
9 Summer 2011 tomato trial at UC South Coast R&E Center representative root systems (left to right): nt check, Vydate, MCW-2
10 2012 Trials South Coast Research & Extension Center & UCCE Shafter Research Farm
11 SCREC 2012
12 SCREC 2012
13 Shafter Processing Tomato Nematode Trial 2012 Mid-Season Root End of Sesaon Gall Rating* Root Gall Rating (7/20/12) (8/21/12) 1. Control 7.06 ABCD A 2. Vydate 3 pt/a 3.48 F 9.56 A 3. Movento 4 fl oz/a x 2 app 7.86 AB 9.88 A 4. Sesamin EC 1 gal/a 8.38 A A 5. Nema Q 3 gal/a 8.34 A A 6. MeloCon 4 lb/a 8.28 A 9.68 A 7. Dazitol 6.25 gal/a 8.42 A A 8. MCW-2 rate liters/ha 5.40 CDEF 9.76 A 9. MCW-2 rate liters/ha 6.06 BCDE 8.92 A 10. Dev Prod-1 1 pt/a 7.46 ABC 9.80 A 11. Dev Prod-1 1 qt/a 7.40 ABC 9.72 A 12. Dev Prod-1 1 pt & 0.5 pt post 5.16 DEF 8.96 A 13. Dev Prod-1 1 pt & 2 X 0.5 pt post 4.00 EF 7.24 B 14. Ecozin 56 fl oz/a 8.94 A A Prob.= % CV= LSD p=0.05 = *Root Gall Rating: 1-10, where 1 equals no gall present and 10 is 100% of root system galled.
14 Shafter Research Farm 2012 DP1 DP2 DP3 DP4 DP1 DP2 DP3 DP4
15 CONTROL
16 VYDATE
17 MCW-2 Low Rate
18 MCW-2 High rate
19 DP 1 pre & 1 post application
20 DP 1 pre & 2 post applications
21 2013 Trials South Coast Research & Extension Center & UCCE Shafter Research Farm
22
23 2013 SCREC Results Mid-season End-season Treatment Gall Rating Gall rating 1. Non-Treated Check 3.4 A 7.6 A 2. Vydate L 2.9 AB 6.2 BC 3. MCW-2 low 1.8 BC 6.5 AB 4. MCW-2 medium 1.2 C 4.9 CD 5. MCW-2 high 0.8 CD 4.5 DE 6. DP preplant 1.3 C 3.3 DEF 7. DP pre+post low 1.8 C 3.9 DEF 8. DP pre+post high 0.4 D 2.8 F 9. Nemaroot low 3.8 A 7.1 AB 10. Nemaroot high 4.0 A 7.6 A
24 Table 4. Average vigor of tomato 4 weeks after planting and harvest fruit yield per plant (kg) at SCREC during the 2013-growing season (n=5). Treatment z Vigor Yield per plant % diff. from non-treated check. 1. Non-treated check 6.4 abc y 1.18 cd 0 2. Vydate L 6.2 c 1.29 bcd MCW-2 low 7.2 abc 1.32 bc MCW-2 medium 7.8 a 1.49 ab MCW-2 high 7.4 abc 1.37 abc DP pre_only 7.4 abc 1.47 ab DP pre+post_low 7.6 ab 1.41 abc DP pre+post_high 7.6 abc 1.61 a Nemaroot low 7.4 a 1.36 abc Nemaroot high 6.2 bc 1.05 d -11
25
26 Nt check Vydate MCW-2 Dp
27
28 Nt check Vydate MCW-2 Dp
29
30 Tab. 5 Nematicide evaluation 2013 at Shafter Station (*root gall rating (1-5)) Average Nematode Rating* 1. Control 4.5 A 2. Vydate 3 pt/a 1 pre & 2 post app 3.0 D 3. Vydate 2 post app 3.5 CD 4. Movento 5 fl oz/a 4.4 AB 5. MCW-2 rate ml/a pre 3.8 ABCD 6. MCW-2 rate ml/a pre 3.3 CD 7. MCW-2 rate ml/a pre & 1 post app 3.6 BCD 8. MCW-2 rate ml/a pre & 2 post app 3.7 ABCD 9. MeloCon 6 lbs/a 4.1 ABC 10. Dp 1 pt/a pre 3.8 ABCD 11. Dp 1 pt pre & 1 post ½ pt /A 3.5 CD 12. Dp 1 pt pre & 2 post ½ pt /A 3.1 D Prob %CV LSD
31
32 Control
33 Vydate-pre & 2 post applications
34 DP-pre & 2 post applications
35 MCW-2-pre & 2 post applications
36 SCREC early root gall rating 7 weeks after transplanting Non-treated check vs MCW-2 (#5) Non-treated check vs Dp split (#8)
37 Non-treated check Vydate MCW-2 (#4) Dp split (#8) representative roots at harvest
38 Conclusions DP and Mana MCW-2 continue to show great promise as developing nematicide options
39 Conclusions MANA s MCW-2 is an excellent non-fumigant nematicide with great potential. Will be released in 2014 as Nimitz Supply will be limited in 2014 Label will carry a caution as signal word Development Product nematicide also has great potential No word when it could be available Vydate works best when applied pre-plant followed by post-plant applications
40 Conclusions Biologicals Performance is below chemicals and often times it s hit or miss with them More work is needed to find how to best use them Other chemistries There is renewed interest in developing non-fumigant nematicides. Other companies are in development stages of non-fumigant products.
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