Researchers report on a study to confirm the level of sensitivity of grapes and tomatoes to 1/10 and 1/100 of the label rate of dicamba. The studies were conducted with pot-grown grape and tomato plants during the summers of 2016 and 2017 at the Haskell Ag Lab.
With a delayed or compressed planting season, this week several growers asked whether they could immediately plant soybeans after a dicamba application. See how Extension Weed Scientist Amit Jhala replied.
Pesticide applications dominate today’s agricultural landscape. These applications are critical for mitigating yield loss and managing a wide variety of pests. In today’s environment, it is critical that pesticide applicators focus on both managing the pest as well as mitigating environmental impact to non-target areas or non-target organisms.
Weed resistance to herbicides is a global problem, which usually results from the repeated use of herbicides with the same mode of action. Simply said: “Weeds just got used to that mode of action and cannot be killed with that mode of action anymore.” Similar phenomenon is observed in medicine with disease resistance to antibiotics.
Dicamba- and glyphosate-resistant soybean, also known as Roundup Ready 2 Xtend soybean, became commercially available for the 2017 growing season. About 500,000 acres were planted with Xtend soybean in Nebraska in 2017 growing season. Three dicamba-based herbicides — XtendiMax, FeXapan, and Engenia — are labeled for application in Xtend soybean.