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679 results on '"SHELTON, ANTHONY M."'

3. Transgenic Insecticidal Corn: The Agronomic and Ecological Rationale for Its Use

Author

Ortman, Eldon E., Barry, B. Dean, Buschman, Lawrent L., Calvin, Dennis D., Carpenter, Janet, Dively, Galen P., Foster, John E., Fuller, Billy W., Hellmich, Richard L., HigginS, Randall A., Hunt, Thomas E., Munkvold, Gary P., Ostlie, Kenneth R., Rice, Marlin E., Roush, Richard T., Sears, Mark K., Shelton, Anthony M., Siegfried, Blair D., Sloderbeck, Phillip E., Steffey, Kevin L., Turpin, F. Tom, and Wedberg, John L.

Published
2001
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16. Development and Evaluation of Degree-Day Models for Acrolepiopsis assectella (Lepidoptera: Acrolepiidae) Based on Hosts and Flight Patterns

Author

Seto, Masanori and Shelton, Anthony M.

Abstract

The leek moth, Acrolepiopsis assectella (Zeller), was first discovered in Ottawa, Canada, during the 1993 growing season, representing the first known occurrence of this species in North America. Since then, it has become a significant concern in Allium vegetable production including garlic, leeks, and onions. Acrolepiopsis assectella was first detected in the contiguous United States during the 2009 growing season in northern New York. In this study, we evaluated the development of the US A. assectella population in the laboratory and commercial onion fields. Our results showed that this population required 443.9 degree-days to complete its life cycle on onions in the laboratory. The development of A. assectella on onion did not significantly differ from populations reared on garlic or leeks. Field studies revealed three distinct flight periods for overwintered, first- and second-generation adult males in northern New York. Life cycle duration in the field ranged from 4 to 8 wk. The degree-day prediction model evaluated in this study provided accurate estimates of the occurrence of the following generation. We conclude that this model can help growers to implement appropriate management strategies for different life stages in a timely manner and lessen damage by this new invasive pest.

Published
2021

17. Biology, Ecology, and Evolving Management of Helicoverpa zea (Lepidoptera: Noctuidae) in Sweet Corn in the United States

Author

Olmstead, Daniel L., Nault, Brian A., and Shelton, Anthony M.

Abstract

The corn earworm, Helicoverpa zea (Boddie), is a polyphagous pest found throughout the United States, where it attacks many field and vegetable crops. Although H. zea has long been a traditional pest of sweet corn, its importance to this crop has increased dramatically over the past two decades. In this review, we summarize information critical for current and future management of H. zea in sweet corn production in the United States. First, we discuss the pest status of H. zea and its life history, including migration, infestation and larval development, diapause, overwintering, and abiotic factors that affect its biology. Next we describe monitoring methods, crop protection decision-making processes, chemical control options, and the use of genetic technologies for control of H. zea. Alternative H. zea management options including biological control, cultural controls, host plant resistance, and pheromone disruption are also reviewed. The role of climate change and its effects on H. zea and its ecology are discussed, as well as the recent invasion of its relative, Helicoverpa armigera (Hübner), which is a major pest of corn in other parts of the world. To conclude, we suggest future research opportunities for H. zea and H. armigera management in sweet corn.

Published
2021

22. List of Contributors

Author

Alves, Analiza P., primary, Carrière, Yves, additional, Clark, John M., additional, Flexner, J. Lindsey, additional, Gaffney, Patrick, additional, Gassmann, Aaron J., additional, Huesing, Joseph E., additional, Hughson, Sarah A., additional, Hurley, Terrance M., additional, Knolhoff, Lisa M., additional, Lee, Si Hyeock, additional, Levine, Eli, additional, Margam, Venu Madhav, additional, Mitchell, Paul D., additional, Nelson, Mark E., additional, Olds, Brett P., additional, Onstad, David W., additional, Pittendrigh, Barry R., additional, Shelton, Anthony M., additional, Spencer, Joseph L., additional, Stanley, Bruce H., additional, Steele, Laura D., additional, Sun, Lijie, additional, and Walters, Kent R., additional

Published
2014
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31. Considerations on the use of transgenic crops for insect control

Author

Shelton, Anthony M.

Subjects
Genetically modified crops -- Usage, Plants -- Insect resistance, Plants -- Genetic aspects, Economics, Political science, Regional focus/area studies
Abstract

The advantages of Bacillus thuringiensis based cotton plants, such as insect resistance, are presented. The significance of plant biotechnology is also discussed.

Published
2007

40. Development and characterization of diamondback moth resistance to transgenic broccoli expressing high levels of Cry1C

Author

Zhao, Jian-Zhou, Collins, Hilda L., Tang, Juliet D., Cao, Jun, Earle, Elizabeth D., Roush, Richard T., Herrero, Salvador, Escriche, Baltasar, Ferre, Juan, and Shelton, Anthony M.

Subjects
Moths -- Physiological aspects, Broccoli -- Genetic aspects, Bacillus thuringiensis -- Physiological aspects, Insecticide resistance -- Genetic aspects, Genetically modified plants -- Research, Biological sciences
Abstract

Results reveal that diamondback moth possessing a high level of resistance to Cry1C protoxin of Bacillus thuringiensis can sustain growth the entire life cycle on transgenic broccoli, also expressing high levels of Cry1C. Data point out that the Cry1C resistance is not related to any modification of the binding site.

Published
2000

41. A flavin-dependent monooxgenase confers resistance to chlorantraniliprole in the diamondback moth, Plutella xylostella

Author

Mallott, Mark, primary, Hamm, Sarah, additional, Troczka, Bartlomiej J., additional, Randall, Emma, additional, Pym, Adam, additional, Grant, Charles, additional, Baxter, Simon, additional, Vogel, Heiko, additional, Shelton, Anthony M., additional, Field, Linda M., additional, Williamson, Martin S., additional, Paine, Mark, additional, Zimmer, Christoph T., additional, Slater, Russell, additional, Elias, Jan, additional, and Bass, Chris, additional

Published
2019
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43. Toxicity of Bacillus thuringiensis spore and crystal protein to resistant diamondback moth (Plutella xylostella)

Author

Tang, Juliet D., Shelton, Anthony M., Van Rie, Jerone, De Roeck, Sandra, Moar, William J., Roush, Richard T., and Peferoen, Marnix

Subjects
Bacterial toxins -- Research, Bacillus thuringiensis -- Analysis, Diamond-back moth -- Research, Biological sciences
Abstract

The diamondback moth Plutella xylostella from Florida, USA, is resistant to Bacillus thuringiensis HD-1 spores and the CryIA crystal protein protoxins. The moth is sensitive to CryIB, CryIC and CryID protoxins while the CryIE and CryIIA proteins are nontoxic. HD-1 synergizes the activity of the proteins which are toxic and has no effect on those that are nontoxic. The toxicity is due to binding of the toxin to midgut and brush border membrane vesicles of the moth and reduced binding confers resistance to the toxin.

Published
1996

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