Abstract
Abstract Four insecticides were evaluated for efficacy against pest species listed above. A 5-year-old Allstar strawberry planting located at Moreland, OH was utilized for this study. Plots consisted of an 18-ft2 area, with 4 replicates per treatment in a randomized block design. Treatments were applied as foliar spray at the rate of 100 gpa (935 1/ha) on 17 July, using a hand-held constant-pressure CO2 sprayer operating at 45 psi (3.2 kg/cm2) and equipped with a 9505-E-Tee Jet nozzle. Once the foliage dried, 3 leaves and 2 berries were sampled from the middle of each replicate and placed in ventilated 450-ml plastic containers. Five adults of each insect were added to each container. Tarnished plant bugs and spittle bugs utilized in this study were obtained from an untreated hay field. Strawberry sap beetles were obtained from laboratory-reared colonies. The number of dead insects was recorded after 24 hrs. of exposure to the treated fruit and foliage.
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