Weeds
The Environmental Protection Agency (EPA) recently expanded Dow AgroSciences’ Enlist Duo herbicide geography from 15 to 34 states.
Many grasses and annual weed seeds have a relatively short life, two to five years, but researchers are finding other seeds to be more resilient. The Weed Science Society of America (WSSA) recently released a fact sheet with information about weed seed dormancy.
Waterhemp has quickly established itself as one of the nation’s most devastating weeds. Resistant to six herbicide groups, the weed can steal between 40% and 70% of yields, according to University of Illinois research.
Doctors don’t prescribe treatment without first diagnosing the ailment. Weed control should work the same way.
While all weeds are problematic, waterhemp, marestail, palmer amaranth, giant ragweed and Italian ryegrass are among the worst because they have documented cases of resistance to multiple herbicide groups, which makes them more difficult to control. In addition to resistance, they have the natural ability to evade herbicide control methods.
Getting rid of yield-robbers takes careful planning and multiple modes of action
Waterhemp, marestail, palmer amaranth, giant ragweed and Italian ryegrass have been found guilty. Their crime: stealing nutrients, sunlight and water from your crops, leading to lower yields and profits.
Stay one step ahead of mounting resistance issues by knowing how to identify and control
Use products with different sites of action to prevent resistance from cornering your fields.