Articles Tagged with ''herbicide''

Study Shows Repeated Glyphosate Accelerates Weed Resistance

The study says the data show a rapid falling-off of glyphosate effectiveness against seven major weeds after the first couple of years. The authors conclude that intensive use of any one weedkiller like glyphosate year-after-year serves to speed up evolution in weeds to resist it.
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Understanding Horseweed Emergence Patterns Remains Key to Control

2022 On-farm trial results suggest variable horseweed emergence across state: soil-residuals needed for season-long control.

Glyphosate-resistant horseweed populations have become more widespread in the state and are now a significant management issue in western PA and the Northern Tier. In addition to glyphosate- or glyphosate and ALS-inhibitor resistance, horseweed is challenging to control because of variable emergence patterns.


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