Evaluation of Danitol Against Mites on Texas Citrus, 1987

Danitol alone and tank mixed with NR 440 oil were compared to Vendex for efficacy against CRM and TCM. Treatments were randomly assigned to 4-tree plots and replicated 3 times in a 26-yr-old ‘Ruby Red’ grapefruit orchard on 16 ft × 25 ft spacing. Treatments were applied on 18 Jun utilizing a FMC 1229 FTM air blast sprayer with speed, nozzling and pressure adjusted for 250 gal/acre. CRM were counted in 2, 1-cm2 lens fields at 10 × on each of 25 fruit per replicate randomly selected at arms length inside the tree canopy. At each count date, 24 leaves per replicate were randomly collected and processed through a mite brushing machine. TCM motiles were collected on detergent-coated glass disks and counted under a binocular microscope at 25 × .