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Forages & Grains
Volume 58 Number 16 Date 08/22/2013 POTATO LEAFHOPPER - Alfalfa surveyed in Buffalo, Jackson, La Crosse and Trempealeau counties contained 0.1-1.8 adults and nymphs per sweep. The average was 0.7 per sweep, based on surveys in a limited number of fields. Economic counts of 2.0 or more per sweep were not observed in the past week or at any time this season. PEA APHID - Populations of this forage pest increased earlier this month, but appear to have leveled off. Most fields sampled from August 16-21 contained fewer than three per sweep. PLANT BUG - Mixed populations of tarnished and alfalfa plant bugs are still very common in alfalfa. Counts vary from 0.2-2.1 per sweep, with an average of 0.5. Plant bug nymphs continue to appear in sweep net collections. -- Krista Hamilton, DATCP Entomologist 
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