213 



412. , and Taft, H. M. 1967. Control of cotton pests by aerial application 

 of ultra-low-volume (undiluted) technical insecticides. J. Econ. Entomol. 

 60: 561-565. 



In field tests conducted in 1965 with ultra-low-volume (undiluted) technical 

 insecticides, malathion at 4-16 fluid oz per acre and Methyl Trithion® 

 (S-[[£-chlorophenyl)-thio]methyl] 0,0-dimethyl phosphorodithioate) at 6 or 12 

 fluid oz per acre applied in 50- or 75-foot swaths from fixed-wing aircraft 

 controlled the ' oil weevil, Anthonomus grand is Boheman. Malathion at 12-16 

 fluid oz per acre applied in a 50-foot swath controlled a light infestation 

 of the bollworm, Heliothis zea (Boddie) , and suppressed populations of the 

 cotton aphid, Aphis gossypii Glover, and the carmine spider mite, Tetranychus 

 telarius (L.). However, it was less effective against these pests when it 

 was applied in a 100-foot swath. Methyl Trithion applied at 6 or 12 fluid 

 oz per acre in 50- or 75-foot swaths suppressed populations of cotton aphids 

 and the carmine spider mite but gave poor control of the bollworm. In small- 

 cage field tests, although malathion and Methyl Trithion were initially 

 effective against the boll weevil, they were not effective longer than 48 

 hours. 



413. , and Taft, H. M. 1968. Control of certain cotton pests with Union 

 Carbide UC-21149. J. Econ. Entomol. 61: 736-739. 



In-furrow treatments with Union Carbide UC-21149 (2-methyl-2-(methylthio) 

 propionaldehyde 0-(methylcarbamoyl)oxime, applied as Temik®, a 10% granular 

 formulation, at 1 lb/acre at planting effectively controlled the boll weevil, 

 Anthonomus g randis Boheman, until the plants began to square; as a side- 

 dressing, it was as effective against the boll weevil as sprays of carbaryl 

 and azinphosmethyl. Also, sidedressing with EC-21149 controlled light in- 

 festations of the two-spotted spider mite, Tetranychus urticae Koch, and the 



