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169. ; Lindquist, D. A.; Ridgway, R. L.; Cowan, C. B.; and Bariola, L. A. 

 1969. Sidedress applications of Union Carbide UC-21149 for control of 

 overwintered boll weevils. J. Econ. Entoraol. 82: 558-565. 



Union Carbide UC-211A9, 2-raethyl-2-(methylthio) propionaldehyde 0-(methyl- 

 carbanoyl)oxime, applied as a sidedressing to 4 to 5-acre plots of cotton 

 provided effective control of Anthonomus grandis Boheman for several weeks. 

 Mortality of released laboratory-reared boll weevils indicated control for 

 2-4 weeks; the number of punctured squares and adult boll weevils, sampled 

 with a tractor-mounted insect-collecting machine, indicated control for 3-6 

 weeks. Two applications of 2 lb UC-21149 per acre applied 9-10 days apart 

 were effective for 4-5 weeks, while a single application was effective for 2-4 

 weeks. More bollworm, Heliothis zea (Boddie) , and tobacco budworm, H. virescens 

 (F.), and fewer beneficial insects were found in treated than in the untreated 

 plots. 



170. , and Ridgway, R. L. 1973. The integration of selected boll weevil 

 suppression techniques in an eradication experiment. U.S. Dep. Agric. 

 Prod. Res. Rep. 152, 25 pp. 



The initial step in demonstrating the feasibility of boll weevil eradication 

 was to critically review the most promising current suppression techniques. 

 Next, several supporting experiments were designed to provide additional 

 information on certain suppression methods. Finall/, an experiment was 

 planned specifically to demonstrate the technical feasibility of boll weevil 

 eradication. The supporting experiments included studies of (1) in-furrow 

 applications of aldicarb for boll weevil control, (2) boll weevil trapping 

 systems, and (3) mechanical sampling of boll weevils on fruiting cotton plants. 

 For the specific eradication experiment, the suppression techniques selected 

 were (1) reproduction-diapau&e control, (2) pheromone wing traps, and (3) 

 in-furrow and side-dress applications of aldicarb. The extensive sampling 



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