Knowledge of adjuvant activation helps with proper adjuvant selection. There are three primary adjuvant categories: surfactants, oil-based adjuvants and spray utility agents. All have a purpose that may or may not fit with what you need when the nozzle starts riding over the field.
Extension Weed Specialist Amit Jhala delves into which weed species need to be controlled now with spring burndown applications. He also addresses burndown challenges and how to overcome them, as well as herbicide modes of action used for burndowns.
Because of the importance of cover crop biomass as a weed-management tool, it is essential to manage fields to maximize growth. Here are a couple of key questions and answers to consider ahead of next season if you see cover crops as an option.
In 2018, Palmer was reported at 44 sites across 6 Minnesota counties. That number will likely go up in 2019. Minnesota Department of Agriculture’s Noxious Weed and Hemp Unit Supervisor Tony Cortilet discusses Minnesota’s response to date and what can be done at the field level to stop or at least slow it’s spread.
Avat Shekoofa, University of Tennessee agronomist, discusses research on Palmer pigweed and the effect that different cover crop species and termination timings have on the weed's ability to germinate.
Rainy conditions have delayed burndown applications ahead of corn, which is a critical situation where resistant grasses have gained ground. For most weeds, though, late burndown in corn can be very effective and safe. After all, atrazine is a great burndown addition to paraquat.
Burndown strategies have to be taken into account when cold steel is needed to clean up ruts and other damage from last year’s wet harvest. Include a residual in your approach since tillage can stimulate long-buried weed seeds from seasons past.
Click on the map to access contact information for Nufarm's field staff.
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