Seed & Chemical
Fighting weeds with multiple modes of action
By Top Crop Manager
Using several herbicides with multiple modes of effective action are essential in combatting resistance, minimizing the weed seedbank and preparing fields for success. A planned herbicide program using multiple modes of action is the best strategy for these tough-to-control weeds.
An herbicide that offers multiple modes of action to help manage a variety of broadleaf weeds that can also be used in various tank-mixes to control glyphosate-resistant species will help address the challenges of weed resistance in both the current and future growing seasons.
For example, last year, a group of growers in Eastern Canada tested Armezon PRO, a new Group 15 and Group 27 herbicide. With a wide application window from early post-emergence to the eight-leaf stage in glyphosate-tolerant corn and the ability to easily tank-mix with additional products, growers were able to customize their weed management to meet their needs. When tank-mixed with atrazine in glyphosate-tolerant corn, Armezon PRO provides four modes of action.
Customizing weed management strategies is especially useful when weather prevents getting into the field for a pre-emergent application.
Managing problem weeds with multiple modes of action provides residual activity, reducing the weed seedbank and setting up fields for the next season.