Results 11 to 20 of about 2,557 (181)

Graphene-Delivered Insecticides against Cotton Bollworm

Nanomaterials, 2022
Nanopesticides can facilitate controlled release kinetics and efficiently enhance the permeability of active ingredients to reduce the dosage and loss of pesticides. To clarify the synergistic mechanism of graphene–insecticide nanocarriers against cotton
Hongwei Zhu, Chen, Zhiwen, Zehui Liu, Guan, Zhifang, Li, Weijia, Zhou, Ming, Weijia Li, Jianguo Zhao, Zhifang Guan, Bai, Xiuli, Zhao, Jianguo, Zhiwen Chen, Ming Zhou, Xiuli Bai, Liu, Zehui, Zhu, Hongwei   +15 more
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New test reveals early diapause in pink bollworm

California Agriculture, 1993
Through basic research into genetic control of pink bollworm development, we devised a rapid immunological method of determining diapause in pink bollworm larvae - formerly a monthlong process which now requires only 24 hours. This new "ELISA" method has
Thomas Miller, Mohamed Salama, Richard C. Weddle, Saku Sivasupramaniam   +3 more
core   +4 more sources

The halo effect: suppression of pink bollworm on non-Bt cotton by Bt cotton in China. [PDF]

PLoS ONE, 2012
In some previously reported cases, transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt) have suppressed insect pests not only in fields planted with such crops, but also regionally on host plants that do not produce Bt toxins.
Peng Wan, Bruce E Tabashnik, Yunxin Huang, Minsong Huang, Kongming Wu   +4 more
core   +2 more sources

Suitability of Satellite Imagery for Surveillance of Maize Ear Damage by Cotton Bollworm (Helicoverpa armigera) Larvae

Remote Sensing, 2023
The cotton bollworm (Helicoverpa armigera, Lepidoptera: Noctuidae) poses significant risks to maize. Changes in the maize plant, such as its phenology, influence the short-distance movement and oviposition of cotton bollworm adults and, thus, the ...
Gábor Milics, Mariann Tóthné Kun, Fruzsina Enikő Sári-Barnácz, Mihály Zalai, Stefan Toepfer, József Kiss, Dóra Iványi, Mátyás Árvai, János Mészáros   +8 more
core   +2 more sources

Diminishing returns from increased percent Bt cotton: the case of pink bollworm. [PDF]

PLoS ONE, 2013
Regional suppression of pests by transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt) has been reported in several cropping systems, but little is known about the functional relationship between the ultimate pest population ...
Peng Wan (189967), Peng Wan, Yunxin Huang, Minsong Huang, Yunxin Huang (189972), Fred Gould (102222), Huannan Zhang, Huannan Zhang (433863), Zhaohua Li, Fred Gould, Zhaohua Li (433864), Minsong Huang (189983)   +11 more
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Raising the Influence of Insecticides against Spodoptera littoralis (Lepidoptera: Noctuidae) and Reducing Field Recommended Dose by Blending with Adjuvants to Simulate Eco-Friendly Formulations [PDF]

Journal of Plant Protection and Pathology, 2023
A wide variety of adjuvants surfactants are available fair therefore need to choose a suitable surfactant to give maximum system enables to choose proper surfactant with ease and enhanced the insecticide effectiveness and raises the perseverance of ...
Sh. Selim, Noha El-Habal, H El-bassoiuny
doaj   +1 more source

Carbohydrate Hydrolyzing Enzymes As A Target for Pink Bollworm Pectinophora gossypiella (Saund.) Control Agents الانزیمات الهاضمة للکربوهیدرات کهدف لعوامل مکافحة دودة اللوز القرنفلیة Pectinophora gossypiella (Saund.) [PDF]

Journal of Plant Protection and Pathology, 2020
Most insect species depend on the digestive enzymes (invertase, trehalase and amylase) to utilize their uptake of carbohydrates. In the present investigation the activities of these enzymes are used as parameters to study the effect of the selected ...
Dina Ahmed, Rania EL-Shennawy, Mervat Kandil   +2 more
doaj   +1 more source

Extended Sentinel Monitoring of Helicoverpa zea Resistance to Cry and Vip3Aa Toxins in Bt Sweet Corn: Assessing Changes in Phenotypic and Allele Frequencies of Resistance

Insects, 2023
Transgenic corn and cotton that produce Cry and Vip3Aa toxins derived from Bacillus thuringiensis (Bt) are widely planted in the United States to control lepidopteran pests.
Galen P. Dively, Tom P. Kuhar, Sally V. Taylor, Helene Doughty, Kristian Holmstrom, Daniel O. Gilrein, Brian A. Nault, Joseph Ingerson-Mahar, Anders Huseth, Dominic Reisig, Shelby Fleischer, David Owens, Kelley Tilmon, Francis Reay-Jones, Pat Porter, Jocelyn Smith, Julien Saguez, Jason Wells, Caitlin Congdon, Holly Byker, Bryan Jensen, Chris DiFonzo, William D. Hutchison, Eric Burkness, Robert Wright, Michael Crossley, Heather Darby, Tom Bilbo, Nicholas Seiter, Christian Krupke, Craig Abel, Brad S. Coates, Bradley McManus, Billy Fuller, Jeffrey Bradshaw, Julie A. Peterson, David Buntin, Silvana Paula-Moraes, Katelyn Kesheimer, Whitney Crow, Jeffrey Gore, Fangneng Huang, Dalton C. Ludwick, Amy Raudenbush, Sebastian Jimenez, Yves Carrière, Timothy Elkner, Kelly Hamby   +47 more
doaj   +1 more source

ROLE OF GLYCINE IN PROTECTING PECTINOPHORA GOSSYPIELLA (SAUND.) AGAINST STRONG PROTEIN-DENATURING ACTIVITY OF PHENOLIC COMPOUNDS IN COTTON PLANTS [PDF]

Journal of Plant Protection and Pathology, 2014
To test the possibility that the free glycine has a role related to the resistance of the pink bollworm larvae to phenolic compounds (PCs), newly hatched larvae were fed on artificial diets containing different concentrations of the selected two PCs ...
Souad Shairra, K. Hassan, Manal El-Sharkawy, Dina Ahmed   +3 more
doaj   +1 more source

Chlorantraniliprole Residual Control and Concentration Determination in Cotton

Insects, 2023
Studies were conducted in 2020 and 2021 at the Delta Research and Extension Center in Stoneville, MS, to determine the residual concentrations of chlorantraniliprole in cotton (Gossypium hirsutum, L.) leaves, as well as the concentrations in petals and ...
Jacob Smith, Whitney D. Crow, Angus L. Catchot, Donald R. Cook, Jeffrey Gore   +4 more
doaj   +1 more source