Results 21 to 30 of about 252,148 (205)

EVALUATION OF THE SUSCEPTIBILITY OF THE BOLL WEEVIL (Anthonomus grandis, BOHEMAN) TO MALATHION IN THE LAGUNA REGION

Tropical and Subtropical Agroecosystems, 2022
Background. Resistance to an insecticide is what determines its effectiveness and the lack of information limits effectiveness in the control of the boll weevil in cotton crops. Objective. The objective of the study was to determine the susceptibility of
C. Silva-Martinez, Pedro Cano-Rios, U. Nava-Camberos, J.L. Garcia-Hernandez, J.L. Reyes-Carrillo, F.J. Sanchez-Ramos, S.S. Mendoza-Retana   +6 more
doaj   +1 more source

Selective application of malathion: effect on boll weevil, non-target insects and natural enemies [PDF]

Brazilian Journal of Biology
Non-selective chemical insecticides are the main method to manage the major insect pest of cotton in the Americas, the boll weevil Anthonomus grandis (Boheman, 1843) (Coleoptera: Curculionidae).
S. F. Camelo, C. A. D. Silva, J. C. Zanuncio   +2 more
doaj   +1 more source

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil [PDF]

Pesquisa Agropecuária Brasileira, 2017
: The objective of this work was to determine the survival pattern of the cotton boll weevil during fallow in Midwestern Brazil. The percentage of adults that remained in the cotton reproductive structures, the percentage of adults searching for shelters,
Carmen Silvia Soares Pires, Mayra Pimenta, Renata Alves da Mata, Lucas Machado de Souza, Débora Pires Paula, Edison Ryoiti Sujii, Eliana Maria Gouveia Fontes   +6 more
doaj   +1 more source

AN ENEMY OF THE COTTON BOLL WEEVIL [PDF]

Science, 1904
n ...
openaire   +2 more sources

The Mexican Cotton Boll Weevil [PDF]

Science, 1910
n ...
openaire   +3 more sources

Reevaluation of the degree day base 60°F concept in US cotton (Gossypium hirsutum L.) production

Agronomy Journal, Volume 115, Issue 6, Page 3045-3061, November/December 2023., 2023
Abstract Cotton (Gossypium hirsutum L.) management decisions to abet early growth, fruit set, boll maturation, and harvest preparation are often facilitated by prediction of the date when critical developmental stages are reached. In the United States, growing degree days calculated with a base 60°F (DD60s) are commonly used to predict cotton ...
Tyson B. Raper, Rebecca Ward, Cheyenne Rushing, Steve Brown, Tyler Sandlin, Randy Norton, Bob Hutmacher, John L. Snider, Dan Fromme, Darrin Dodds, Michael Jones, Keith Edmisten, Guy Collins, Seth Byrd, James Griffin, Murilo Maeda, Hunter Frame, Brian Pieralisi, Calvin Meeks, Jared Whitaker, Robert L. Nichols, Gaylon Morgan   +21 more
wiley   +1 more source

Development, survival and morphometric parameters of boll weevil reared in different photoperiods [PDF]

Brazilian Journal of Biology
Third instar larvae of the cotton boll weevil, Anthonomus grandis grandis (Boheman) (Coleoptera: Curculionidae) are offered to the parasitoid Jaliscoa grandis Burks, 1954 (=Catolaccus grandis) (Hymenoptera: Pteromalidae) for mass-rearing.
M. H. P. Martínez, E. D. Vasconcelos, J. G. Di Stefano, J. C. Zanuncio, C. A. D. Silva   +4 more
doaj   +1 more source

Effects of PREP on Cotton Fruiting, Boll Opening and Boll Weevil Populations

, 1987
Prep applied to cotton on 15, 23, and 29 September reduced numbers of squares, immature green bolls < 1 inch in diameter, and accelerated mature boll opening. Reduced cotton fruiting forms in Prep- treated plots resulted in reduced boll weevil population
Price, P., Deeter, B., Henneberry, T. J., Meng, T.   +3 more
core   +4 more sources

Inefficient weapon—the role of plant secondary metabolites in cotton defence against the boll weevil [PDF]

, 2020
Plant cultivar selection for resistance to herbivore pests is an effective, environmentally safe and inexpensive method to implement in integrated pest management programs. In this study, we evaluated seven cotton genotypes with respect to the production
Borges, M., Birkett, M. A., Caulfield, J. C., Laumann, R. A., Magalhaes, D., Blassioli-Moraes, M. C.   +5 more
core   +1 more source

Rational Practices to Manage Boll Weevils Colonization and Population Growth on Family Farms in the Semiárido Region of Brazil

Insects, 2014
Because boll weevil, Anthonomus grandis Boh. develops partially protected inside cotton fruiting structures, once they become established in a field, they are difficult to control, even with nearly continuous insecticide spray.
Robério C. S. Neves, Felipe Colares, Jorge B. Torres, Roberta L. Santos, Cristina S. Bastos   +4 more
doaj   +1 more source