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Influence Of Different Cotton Fruit Sizes On Boll Weevil (Coleoptera: Curculionidae) Oviposition And Survival To Adulthoods., S. M. Greenberg, T. W. Sappington, M. Sétamou, R. J. Coleman
Influence Of Different Cotton Fruit Sizes On Boll Weevil (Coleoptera: Curculionidae) Oviposition And Survival To Adulthoods., S. M. Greenberg, T. W. Sappington, M. Sétamou, R. J. Coleman
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Understanding the critical host plant factors that determine oviposition behavior and survival of boll weevil, Anthonomus grandis grandis Boheman, on cotton, Gossypium hirsutum L., is important for developing successful pest management strategies. However, published information is both conflicting and limited regarding how different cotton fruit sizes affect boll weevil oviposition choices and subsequent larval survival to adulthood. Consequently, we used a standard based on fruit size diameter to evaluate boll weevil feeding and oviposition punctures, and survival to adulthood on 10 different cotton fruit sizes: squares of diameter 1.5-2.0 (pinhead), 3.0-3.5 (matchhead), 5-6, 7-8, or 9-10 mm; candle; and bolls …
Boll Weevil (Coleoptera: Curculionidae) Survival Through Cotton Gin Trash Fans, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
Boll Weevil (Coleoptera: Curculionidae) Survival Through Cotton Gin Trash Fans, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
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 cleaning machinery will be shunted alive into the trash fraction, which passes through a centrifugal trash fan before exiting the gin. The objective of this study was to determine survival potential of boll weevils passed through a …
Boll Weevil (Coleoptera: Curculionidae) Survival Through The Seed Cotton Cleaning Process In The Cotton Gin, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
Boll Weevil (Coleoptera: Curculionidae) Survival Through The Seed Cotton Cleaning Process In The Cotton Gin, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
There is concern that gins located in boll weevil, Anthonomus grandis grandis Boheman, eradication zones may become points of reintroduction when they process cotton grown in a neighboring infested area. We estimated boll weevil survival through two typical machine sequences used in commercial cotton gins to clean and dry the seed cotton in advance of the gin stand, as well as separately through two incline cylinder cleaners or one or two tower dryers operating at different temperatures. Large numbers of laboratory-reared adult boll weevils were marked with fluorescent powder, fed into the test system, and recovered with the assistance of …
Potential For Escape Of Live Boll Weevils (Coleoptera: Curculionidae) Into Cottonseed, Motes, And Cleaned Lint At The Cotton Gin, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
Potential For Escape Of Live Boll Weevils (Coleoptera: Curculionidae) Into Cottonseed, Motes, And Cleaned Lint At The Cotton Gin, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, Roy V. Baker
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Reintroductions of the boll weevil, Anthonomus grandis grandis Boheman, into areas of the United States where it has been eradicated or suppressed are very expensive to mitigate. There is concern that a cotton gin in an eradication zone may serve as a site of boll weevil reintroductions when processing cotton harvested in a neighboring infested zone. Similarly, there is a question whether weevil-free areas can safely import gin products, such as cottonseed and baled lint, from infested areas without risking an introduction. Many countries require fumigation of imported U.S. cotton bales to protect against boll weevil introductions, costing the U.S. …
Potential For Transport Of Boll Weevils (Coleoptera: Curculionidae) To The Cotton Gin Within Cotton Modules, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, John W. Norman Jr., Allen E. Knutson
Potential For Transport Of Boll Weevils (Coleoptera: Curculionidae) To The Cotton Gin Within Cotton Modules, Thomas W. Sappington, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Mark D. Arnold, John W. Norman Jr., Allen E. Knutson
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
There is concern that cotton gins located in boll weevil, Anthonomus grandis grandis Boheman, eradication zones serving customers in adjacent infested zones may serve as a site for boll weevil reintroductions if weevils are transported alive inside cotton modules. We surveyed fields in three distinct areas of Texas and found that weevils can be present in large numbers in cotton fields that have been defoliated and desiccated in preparation for harvest, both as free adults and as immatures inside unopened bolls. Harvested cotton taken from module builders indicated that ∞100-3,700 adult boll weevils were packed inside modules constructed at the …
Effects Of Burial And Soil Condition On Postharvest Mortality Of Boll Weevils (Coleoptera: Curculionidae) In Fallen Cotton Fruit, S. M. Greenberg, A. T. Showler, T. W. Sappington, J. M. Bradford
Effects Of Burial And Soil Condition On Postharvest Mortality Of Boll Weevils (Coleoptera: Curculionidae) In Fallen Cotton Fruit, S. M. Greenberg, A. T. Showler, T. W. Sappington, J. M. Bradford
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Effects of soil condition and burial on boll weevil, Anthonomus grandis grandis Boheman, mortality in fallen cotton, Gossypium hirsutum L., fruit were assessed in this study. During hot weather immediately after summer harvest operations in the Lower Rio Grande Valley of Texas, burial of infested fruit in conventionally tilled field plots permitted significantly greater survival of weevils than in no-tillage plots. Burial of infested squares protected developing weevils from heat and desiccation that cause high mortality on the soil surface during and after harvest in midsummer and late summer. A laboratory assay showed that burial of infested squares resulted in …