Presentation from the herbicide subgroup

Transcription

1 Presentation from the herbicide subgroup Heikki Jalli Natural Resources Institute Finland (Luke)

2 Reports, Solvejg K. Mathiassen started EWRS 2015, Montpelliere New management approaches Chemical weed management Weed biology Herbicide resistance Weed ecology Integrated weed management New challenges

3 Reports, Henrik Hallqvist continued / 27th German Conference on Weed Biology and Weed Control It was decided that the conference language should be English but.. 3 NORBARAG 3-4 March

4 Anders TS Nilsson by JOHANNES HERRMANN, MARTIN HESS, HARRY STREK, OTTO RICHTER and ROLAND BEFFA Linkage of the current ALS-resistance status with field history information of multiple fields infested with blackgrass (Alopecurus myosuroides Huds.) in southern Germany Interesting

5 South Germany 90 fields 6 years Crop management analyzed Johannes Herrmann

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8 Country reports, Kirsten Semb Tørresen strarted WEED SPECIES THAT HAVE DEVELOPED RESISTANCE AGAINST ALS-INHIBITORS, IN NORVAY Stellaria media 2003 Sonchus asper 2006 Matricaria inodora 2006 Spergula arvensis 2006 Galeopsis spp Polygonum persicaria 2009

9 Heikki Jalli Finland Tribenuronmethyl resistant CHEAL NORBARAG 3-4 March

10 Ona Auskaliene Activities in 2015 LT Field trials Seed samples investigation

11 Field trials Herbicide a.i Rate Units Efficacy against APESV, % 1. Untreated - 2. DFF + FFA 0.5 l/ha Fenoxaprop-ethyl 1.2 l/ha Pinoxaden 0.9 l/ha Isoproturon 3.0 l/ha Iodosulphuron + 2,4D 1.0 l/ha Pyrosulam + florasulam + amino pyralid + PAM 0.2 kg/ha Sulphosulphuron + PAM kg/ha 20

12 Henrik Hallqvist Resistant: ALOMY Blackgrass STEME Common chickweed APESV loose silky-bent POLTO Pale persicaria MATIN Scentless mayweed GAESP Hempnettle Ian Heap s database does not have all Swedish resistant weeds

13 Status of herbicide resistance DK August 2015 Weed species Resistance mechanism First case No of locations STEME (S. media) ALS TSR GALTE (G. tetrahit) ALS TSR? 1 ALOMY (A. myosuroides) ACCase TSR, NTSR PAPRH (P. rhoeas) ALS TSR MATIN (T. inodorum) ALS TSR LOLMU (L. multiflorum) TSR NTSR CHRSE (C. segetum) okseøje ALS TSR APESV (A. spica-venti) NTSR/ (TSR) CAPBP (C. bursa pastoris) ALS TSR

14 News from the companies Oluf Juhl, Bayer Samples where farmer believes to be resistant weeds = in most cases poor weed management Monitoring herbicide resistance development in Apera spica-venti in Latvia and Lithuania Ineta Vanaga Bayer CropScience Asmo Saarinen, Berner SU resistant CHEAL (common lamb's quarters) and GAEBI (common hemp-nettle)

15 New herbicide resistance projects/reports Hogweed containment with integrated pest management methods /EPMPHASIS project Spatial pattern of herbicide resistance development from ALSinhibiting resistant silkybentgrass (Apera spica-venti) population in different Danish fields. Marielle Babineau Resistance mechanisms of herbicide resistance in Lolium multiflorum L from Denmark and mining the ranscriptional regulation of metabolic based herbicide resistance Khalid Mahmood

16 Discussion Nordisk resistance database, who will

17 Thank you!

18 18 Teppo Tutkija