Subtropical boll weevil ecology

Boll weevil testis-specific cDNA.

Economic Risk Efficiency of Boll Weevil Eradication

fits and costs. This shortcoming may be addressed The purpose of this study was to determine the by directly estimating Mississippi Delta producers' economic risk efficiency of implementing a boll benefits and costs of a BWE program. However, weevil (Anthonomus grandis [Boheman]) eradicaonly pest control costs prior to BWE program adoption (BWE) program in cotton (Gossypium hirsutum tion are av...

PHYSIOLOGICAL ECOLOGY Effects of Photoperiod on Boll Weevil (Coleoptera: Curculionidae) Development, Survival, and Reproduction

Effects of photoperiod on development, survival, feeding, and oviposition of boll weevils, Anthonomus grandis grandis Boheman, were assessed under Þve different photophases (24, 14, 12, 10, and0h) at a constant 27 Ctemperature and65%RHin the laboratory.Analyses of our results detected positive relationships between photoperiod and puncturing (mean numbers of oviposition and feeding punctures pe...

Size-dependent feeding and reproduction by boll weevil (Coleoptera: Curculionidae).

The considerable variation in adult size of the boll weevil, Anthonomus grandis grandis Boheman, has been well documented, but the influences of adult size on reproductive rate are not known. We examined the relationship between the size of boll weevils and their feeding and oviposition. Weevils weighed to the nearest milligram were grouped into five categories based on pupal weight: < or =5, 6...

Boll weevil (Coleoptera: Curculionidae) survival through cotton gin trash fans.

There is concern that cotton gins may serve as loci for reintroduction of boll weevils, Anthonomus grandis grandis Boheman, to eradicated or suppressed zones when processing weevil-infested cotton from neighboring zones. Previous work has shown that virtually all weevils entering the gin in the seed cotton will be removed before they reach the gin stand. Those not killed by the seed cotton clea...