Citrus Red Mite Control on Citrus, 1984

The study was conducted on a plot of recently transplanted trees located at the LSU Citrus Research Station, Port Sulpher, LA. A randomized complete block design was used with 4 replications per treatment (individual trees served as plots). Pesticides were applied on 10 Oct ’84 with a hand-held CO2 pressurized sprayer delivering 0.5 liter per tree at 40 psi through a single spray nozzle containing a D-3 disc, No. 25 core, and 16 mesh strainer. Trees were sprayed until completely covered. Although only 50 liters of pesticide was applied per acre, pesticide concentrations were calculated at a rate of 378 liter per acre so as to simulate concentrations used for a mature stand. Evaluations were made on 19 Oct and 13 Nov by randomly selecting 10 leaves per tree as follows: 2 leaves from each of the 4 compass directions and 2 from the center of the tree. Leaves were taken to the lab, examined under a stereo-microscope, and the number of mites recorded.