Texas Citrus Mite Control, 1979

Experimental mificides were evaluated for efficacy against Texas citrus mite (TCM) in a randomized block design. Each treatment was replicated 4 times in single free plots on a 20 × 24 ft spacing (= 91 frees/acre). Tree height and canopy diameter varied between 4-6 ft and 2-4 ft, respectively. Spray was applied dilute to runoff with a handgun at 200 psi from a truck-mounted Myers sprayer. Approximately 5 gallons of finished spray were applied per tree. This was ca. 455 gallons per acre. Water pH was 6.3. Twenty leaves from the 1979 spring flush were picked at random around the outer canopy of each sample free 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.