Cotton was planted on 5 May at the Robert Fratesi farm in Jefferson County. Plots consisted of 6 rows (40 inch centers) × 50 ft. Treatments were arranged in a RCBD with 4 replications. Insecticide treatments were applied on 30 Jun, 4 Jul, 23 Jul and 11 Aug with a CO2 sprayer mounted on a John Deere 6000 hi-cycle. Total volume was 10.6 gpa at 30 psi using Teejet TXVS-8 nozzles on 20 inch spacing. Insect counts were made at 4 DAT by whole plant examination of 10 row ft in the center of each plot.

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EVALUATION OF SELECTED INSECTICIDES FOR CONTROL OF BOLL WEEVIL, 1993:Cotton was planted on 15 May at the James Ray farm in Lonoke County. Insecticides were applied on 17, 20, 23, 27 Aug and 1 Sep using a John Deere 6000 hi-cycle equippped with a C0 2 sprayer. Total volume was 10 gal/acre at 50 psi using Teejet TX-8 hollowcone nozzles on 19 inch spacing. Plots consisted of 10 rows (38 inch centers) x 50 ft. Treatments were arranged in a RCBD with 4 replications. Boll weevil ratings were made 2-4 DAT by examining 25 squares/plot for boll weevil damage.No significant differences in damaged squares were observed between the untreated check and any of the insecticide treatments after the first application. The pyrethroid insecticides with the exception of Baythroid at 0.022 (AI)/acre were significantly lower than the untreated check after the second application. Most of the pyrethroid insecticides were significantly lower than the untreated check after the 3rd application. After the 4th application, only Baythroid at the 0.03 rate was significantly different than the untreated check. No differences were observed after the 5th application. The pyrethroid insecticides provided control earlier than the other insecticides. Baythroid provided control later than the other compounds tested.

Cotton was planted on 14 May at the University of Arkansas Northeast Research and Extension Center in Keiser, AR. Plots were treated with Terrachlor + Temik or Terrachlor + No Temik using Gandy boxes. Plots were 4, 38-inch rows, 50 ft long arranged in a RCB design with 4 replications. Ratings were made on 27 May & 3, 9, & 17 Jun. Visual ratings were made on a scale of 1—10 with 10 = severe damage.