CONTROL OF COTTONY CUSHION SCALE ON CLEYERA, 2005

The objective of this study was to evaluate the efficacy of Safari 20SG, Celero 16WSG, and Tristar 30SG against CCS.. The trial was conducted in a greenhouse at the Texas A&M University System Agricultural Research and Extension Center at Overton, TX from 3 Oct to 24 Oct. Cleyera plants grown in three gal pots were naturally infested with all CCS life stages at the initiation of the trial. The plants were hand watered as needed. Plants were set up in a RCB design with four replicates. Foliar treatments were applied using a R & D CO2 backpack sprayer with an 8002VS tee-jet flat spray nozzle at 60 psi. Foliar treatments were applied until run-off. Safari 20SG drench applications were applied at a rate of 12 oz solution per pot. A single treatment application was applied on 0 DAT. Data from one Orthene TTO Spray 97 and one Safari 20SG 12 oz drench replicate were removed due to dead plants. To monitor the scale population, the same three inches of plant stem and leaves were monitored each sample period. Data were transformed using a logarithmic transformation [log10 (x + 1)] and were subjected to ANOVA. Means separation was accomplished by using LSD (P ≤ 0.05).