我们能从英国应对抗除草剂杂草的经验中学到哪些重要教训？.pdf

1、R E S P O N S I B L ES U S T A I N A B L EK N O W L E D G E A B L Ewww.adas.co.ukJohn Cussans27/01/2026TEAGASC National Tillage Conference(Jan 2026)2What are the important things we can learn from the UKs experience with herbicide resistant grass weeds?Resistance testing the importance of comprehens

2、ive resistance testing Herbicide resistance is not inevitable-even if resistance is present locally you control you own fate Biosecurity protecting yourself from other peoples mistakes27 January 20263Comprehensive resistance testing monitoring on a national scale 27 January 2026Post-emergence:Mesosu

3、lfuron+IodosulfuronDecline in herbicide efficacy of 3.7%/year since the start of testing with Atlantis in 2001/2002.RR(orange)and RRR(red)indicates a resistant sample(75%control).Progressive,and rapid,increase in the proportion of samples rated as RR or RRR,from zero in 2001/02 to 63%by 2011/12 and

4、90%by 2019/20.Knowing that herbicide resistance present and is a risk is valuable4Comprehensive resistance testing making decision on you farm27 January 2026Knowing that herbicide resistance present and is a risk is valuable BUT it doesnt tell you what herbicides work and dont work on your farmAtlan

5、tisAxialS45.645.6R?7.76.2RR24.132.3RRR22.615.9%age of samples in each R Rating categoryFlufenacetSensitive70.6Significantly Reduced 17.3No control9.6PINOXADENFLUFENACET8.8%ALS17.6%14.5%7.25%19.2%1.0%6.7%5Herbicide resistance is not inevitableR=0.21-40.00-20.000.0020.0040.0060.0080.00100.00-20.000.00

6、20.0040.0060.0080.00100.00Field BField AAtlantisR=0.220.0010.0020.0030.0040.0050.0060.0070.0080.0090.00100.00-20.000.0020.0040.0060.0080.00100.00Field BField AAxialWhen comparing populations collected from two fields on the same farm well over half are significantly different in herbicide sensitivit