Langdon Research Extension Center cropping systems specialist Lesley Lubenow is taking a look at the impact of flea beetles on canola. Lubenow is researching the economic injury levels versus economic thresholds. “We want to spray the bugs before they hurt the yield. In order to determine that, you need to know the tipping point of when injury equals yield loss.” Lubenow is finding economic injury at much lower numbers than expected in the early trials.
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