Abstract
Abstract Pesticides were applied to mature ‘Delicious’ trees in Fairfield, Va. Two applications were directed against each of 2 generations of SJS. Spray dates were 30 May, 14 Jun, 5 Aug and 16 Aug. Each treatment included 4 single-tree replicates in a completely randomized design. An unsprayed buffer tree was left between each sprayed tree. Applications were made with a truck-mounted Swanson sprayer with a handgun attachment. Scale populations were assessed by counting SJS-infested fruit after each generation of crawlers had settled (on 8 Jul and 17 Sep, respectively). Fifty fruit per tree were examined.
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