Abstract Insecticides were applied to an 18-tree plot (6 rows × 3 trees) with a Swanson DA500A airblast sprayer, which traveled at 3.86 km/h and delivered 935 liters/ha. Dates of application were 22 Apr (petal fall [PF]), 6 May (shuck split [SS]), 15 May (shuck fall [SF]), 29 May (first cover [IC]), 11 Jun (second cover [2C]), 25 Jun (third cover [3C]), 8 Jul (fourth cover [4C]), and 23 Jul (fifth cover [5C]). Sevin 50W was applied to all chemical treatment plots on 6 Aug. Fungicides consisting of Captan or sulfur (1 Asana treatment) + Benlate (last 2 applications) were applied separately to all treatments on the same dates as insecticides. Data were taken from 4 replications in the center of each plot. Treatment effect on ERM and TSSM was determined by sampling 25 leaves from the center of each tree on 3 Aug, removing mites with a mite-brushing machine, and counting active stages with a binocular microscope. Control of OFM was evaluated on 4 Aug by counting the damaged terminals/tree. Treatment effectiveness on catfacing insects was determined by examining 400 peaches (100/replication) for injury on 19 Aug.