As of May 1, alfalfa weevils have been insignificant pests this spring according to most extension field crop specialists. The one exception is that Virgil Schmitt reported a large population in alfalfa on sandy ground in Clinton County. In this field, he noted that the population averaged at least two larvae per stem, and the field was sprayed by the farmer.
Iowa State University
Rice, Marlin E., "Alfalfa weevils few and far between" (2006). Integrated Crop Management News. 1239.
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