Amercian plum borer adult Lorsban 4E used for lesser peachtree borers at petal fall will provide control against any APB that may be present. Results of New York field trials indicate that if APB number just a few per tree on average, this single application at petal fall would probably be adequate, given the economic constraints of tart cherry production. Under conditions of more severe pressure, a second application around the beginning of August would be warranted against the second generation larvae. This would also correspond with the timing for the last of the season's peachtree borer sprays. A new fact sheet on American Plum Borer, published by the New York State IPM Program, is now available.
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Request Insect Identification Sheet No. The minute SJS adult males emerge in the spring from beneath scale covers on the trees, usually during bloom, and mate. The first of this year's adults should be showing up any day now in our traps at Geneva. About 24 hours after birth, the crawlers have walked or drifted to new sites and settled in by inserting their mouthparts into the tree and secreting a white waxy covering that eventually darkens to black. San Jose scale crawler SJS infestations on the bark contribute to an overall decline in tree vigor, growth, and productivity.