Citrus Red Mite Control, 1979

Experimental miticides were evaluated for efficacy against citrus red mite (CRSM) in a randomized block design. Each treatment was replicated 4 times in single tree plots on a 15 × 12.5 ft spacing (= 232 trees/acre). Tree height and canopy diameter varied between 6-9 ft and 5-7 ft, respectively. Two gallons of finished spray were applied to each tree using a compressed air hand sprayer at 50 psi. Water pH was 6.4. Twenty leaves from the 1979 spring flush were picked at random around the outer canopy of each sample tree at various time intervals before and after spraying. The entire surface area of each leaf was examined for motile spider mites and the count was recorded as one observation.