White peach scale seasonal biology and management

Greetings,  Research in the early 1970’s by Virginia Tech entomologist, Marvin Bobb, showed that white peach scale populations in the Charlottesville area produced first generation crawlers that were present during May. Second generation crawlers were found through July and those of the third generation were present from late August through September. The cool and wet conditions that have prevailed for much of April have likely slowed the rate of white peach scale egg hatch and nymphal development this year, so stone fruit orchards with a history of this pest can be treated for first generation crawlers now. Recommended materials for managing this pest include, in alphabetical order, Centaur, Diazinon, Esteem, Lannate, and Movento.

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