Sidedress Applications of Union Carbide UC-21149 for Control of Overwintered Boll Weevils123

Autor: R. L. Ridgway, D. A. Lindquist, J. R. Coppedge, L. A. Bariola, C. B. Cowan
Rok vydání: 1969
Předmět:
Zdroj: Journal of Economic Entomology. 62:558-565
ISSN: 1938-291X
0022-0493
DOI: 10.1093/jee/62.3.558
Popis: Union Carbide UC-21149, 2-methyl-2-(methylthio) propionaldehyde O-(methyIcarbamoyl) 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 (Boddic), and tobacco budworm, H. virescens (F.), and fewer beneficial insects were found in treated than in the untreated plots.
Databáze: OpenAIRE