Effect of Materials Applied for Control of Citrus Thrips on Citrus Red Mite Populations, 1983

Materials were applied in Field 12 of the Lindcove Field Station (Exeter, Calif.) at petal fall (18-19 May) for control of citrus thrips, using a Hardie hand-gun and John Bean sprayer at 500 lb/in2, outside coverage and approximately 200 gal/acre. Four tree plots were used with three replicates per material. Naked-eye counts of adult female mites on 32 leaves per tree (two, four-leaf terminals per quadrant) were made. Counts were discontinued at mite levels in excess of 6.25 per leaf.