Dry soil conditions may change up insecticide treatment options for sugarbeet root maggot control. NDSU Extension entomologist Mark Boetel says beet growers may need to use a liquid insecticide. “We want to time that at least five days ahead of the anticipated peak fly and that goes for growers who are not even going to have a regular application on at planting. A well-timed liquid spray can do a nice job at preventing egg laying. This will also manage present adults.” Boetel recommends scouting those fields five days after application. “Keep an eye on those fields for any resurgence of fly activity. I don’t expect a sustained period of activity. I suspect with the significant rise in temperatures, there will be a more distinct, sharp peak in fly activity.”
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