Insecticide Control of Cat-Facing Insects and Plum Curculio on Early and Late Ripening Peaches, 1979

The test was conducted in orchards at the Southeastern Fruit and Tree Nut Res. Stn., Byron, Ga. Both a Maygold cultivar (ripening date 25 May) and a Dixiland cultivar (ripening date 10 Jul.) were selected for the test. The 4 year-old orchards were square, 0.8-ha blocks, which were planted in 6.1 by 6.1 m spacings, having 14 trees by 14 rows. The orchard was quartered into four plots (7 by 7 trees) and treatments were assigned to each plot randomly. Premeasured portions of the insecticides were added to 50 gal of water in an air-blast sprayer. Each tree (49 per plot) received ca. 1 gal of solution. Application dates for both orchards were as follows: 19 Mar., 2 Apr., 12 Apr., 24 Apr., 8 May, and additionally in the Dixiland orchard on 29 May, 12 Jun., and 26 Jun. The test plots also received a complete fungicide program utilizing both Benlate and Captan. Sampling for PC and CFI were taken from the nine center trees (3 by 3) in the 49 tree (7 by 7) treatment plots. Ten fruit per tree were removed periodically and examined for PC feeding and egg laying scars and CFI scars. Data were submitted to analysis of variance, one-way classification.