Texas Citrus Mite Control, 1976

Abstract

Abstract Texas Citrus Mite Control, 1976: Six compounds were evaluated in dilute sprays vs. Texas citrus mites in a block of double-bedded ‘Temple’ orange trees. The 3-tree plots were replicated 4 times/treatment in randomized blocks and were separated from adjacent plots by unsprayed guard rows. Applications were made Feb 8 with a John Bean Royalier JK-20T hydraulic sprayer operated at 300 psi and equipped with a double Boyce gun. Approximately 6 gallons of spray were needed to spray each tree to ‘run-off’. At the indicated pre- and posttreatment intervals, 25 leaves, randomly selected from the center tree in each treatment plot, were picked into a pint Mason jar containing 50% alcohol and brought to the lab. Each jar was vigorously shaken and then leaves removed separately and surface-rinsed into the funnel of a Millipore filter system with a stream of 50% alcohol from a wash bottle. The leaf-wash and the liquid from the Mason jar were drawn through the filter. Mites on the filter disc were counted with the aid of a binocular dissecting scope.