In the summer of 2019, the efficacy of several pesticides were testedfor their control of Banks grass mites and two-spotted spider mites.Two fields of experimental plots of corn were planted on 2 May at theOklahoma Panhandle Research & Extension Center (OPREC) locatedin Goodwell, Oklahoma. The first field trial consisted of plots measuring10 ft. by 30 ft. with 30 in. spacing between each plot. The plotswere arranged in four rows of replicates with a randomized completeblock design. The plots were irrigated with 13.5 in. of water in additionto pre-water and rainfall of 11.3 in. The plots were sprayed withAsana XL 8oz./A on 25 Jun and 7 Aug to increase mite populations.John Deer tractor boom sprayer was used with Teejet Air induction110-025 nozzles at 40 psi and speed of 5 mph with the carrier rate of15 gallons per acre. Each of the treatments were applied only to twomiddle rows of each plot on 8 Aug using a John Deer Hi-Boy sprayerwith Teejet Air induction 110-025 nozzles at 40 psi and speed of 5 mphwith the carrier rate of 15 gallon per acre. The samples were takenfrom middle two rows at 7, 14, and 21 days following treatment on 15Aug, 22 Aug, and 29 Aug. Samples consisted of four leaves taken from4 four randomly selected plants from each plot within each of the fourreplications. All samples were taken to the laboratory, and mites werecounted using an electronic microscope (Leica Microscope 10X/30X).
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