Peach, Evaluation of Insecticides, 1981

This experiment was conducted at Cream Ridge, NJ in a 6-year-old orchard, variety Red Haven. Single-tree plots, replicated 5 times in a randomized complete block design were sprayed to runoff (ca 2 gals/tree; 100 trees/Acre) with a hydraulic sprayer equipped with a handgun and operated at 225 psi. Temik and Furadan were applied as granules to the soil surface and ranked in on Apr 24, 1981 (late bloom). The spray treatments were applied on Apr 28 (petal fall), May 18 (shuck-off), Jun 11 and Jul 7 and 22. The crop was very light on most trees due to cold damage during bloom. Cat-facing damage was measured by examining up to 50 fruit per tree in 4 replicates on Jun 10. Green peach aphid and oriental fruit moth damage was estimated by examining the entire tree for aphid colonies or oriental fruit moth infested terminals. European red mite populations were estimated by collecting 15 or 25 leaves from each tree, brushing the mites onto glass plates, and counting the mites with the aid of a binocular microscope. Appropriate transformations were made for each data set prior to analysis of variance.