Field Evaluation of Diflubenzuron (Dimilin) for Control of Boll Weevil Reproduction

Autor: Ganyard, M. C., Bradley, J. R., Boyd, F. J., Brazzel, J. R.
Zdroj: Journal of Economic Entomology; June 1977, Vol. 70 Issue: 3 p347-347, 1p
Abstrakt: Diflubenzuron [Dimilin®; 1-(4 chlorophenyl)-3-(2, 6-difluorobenzoyl)-urea] was tested for control of Anthonomus grandis Boheman in a replicated field experiment. Test plots were located in an area isolated from commercial cotton by 19–40 km. A population density of ca. 250 overwintered boll weevils/acre (618/ha) was introduced into each of 15 plots. Three rates tested were 2-, 4-, and 8-oz AI/acre (141, 282, and 564 g/ha). Boll weevil damaged squares were collected from cotton plants weekly, incubated for 7–9 days, and examined for developing boll weevil larvae or pupae. Results showed that reproduction in the diflubenzuron treated plots was reduced by >99% over the check plots through the F2 generation.
Databáze: Supplemental Index