Citrus Red Mite Pesticide Efficacy Tests in Riverside, 1985

Acaricides were tested for control of citrus red mite populations in Riverside, CA. A completely-randomized design was used with 8 single-tree replicates per treatment. Trees were assigned to treatments based on precount densities to minimize within-treatment variation prior to the application of test materials. Applications were made on 22 and 23 Apr when mite densities were moderately high. Materials were applied with a handgun at 450 psi (ca 10 gal/tree, 1000 gpa) using a John Bean sprayer. Counts of live, adult female mites from two 4-leaf terminals per tree quadrant (total of 32 leaves per tree) were made weekly until mite populations naturally declined due to the onset of high (>37°C) daily temperatures in late May.