Apple, Test of Acaricides, 1979

APPLE, TEST OF ACARICIDES, 1979: Test materials were applied on Jul 11 and 12 to single-tree plots, cultivar Sungold, replicated 3 times and arranged in a randomized complete block design. Treatments were applied at the rate of 10 gal/tree using a hydraulic sprayer equipped with a handgun. Prior to the test the trees had been sprayed with endosuifan and captan as needed to control white apple leafhopper and apple scab, respectively. Mite population estimateswere made by randomly picking 25 leaves/replicate, pooling the leaves for each replicate, then brushing the mi tes onto glass plates and counting all stages. The egg counts are not included in the data presented for the European red mite. A. fallacis data includes all stages.