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Soybeans
Volume 56 Number 14 Date 07/28/2011 JAPANESE BEETLE - Defoliation has increased sharply in soybeans and other crops. Beetles were observed in 32% of fields examined in the southern and central areas, where defoliation ranged from 2-18% fieldwide. Circumstances thus far have not justified treatment, but leaf feeding injury is approaching the 20% economic threshold for R1-R3 soybeans. TWO-SPOTTED SPIDER MITE - This mite commonly begins to cause yellowing of leaves in the margin rows of soybeans by early August, particularly when conditions are dry. Although yellowing symptoms have not been observed in any field examined since mid-July, growers are advised to monitor soybeans weekly for stippling associated with early mite infestation. --Krista Hamilton, DATCP Entomologist 
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