Results 21 to 30 of about 1,616 (205)

Karyotypic analysis of the cotton boll weevil, Anthonomus grandis Boheman

Genetica, 2000
The diploid chromosome number of the cotton boll weevil, Anthonomus grandis Boheman, is 44. Both C- and N-banding techniques of mitotic cells demonstrated constitutive heterochromatin in the p arm of the eight largest chromosomes, the p arm of the X chromosome, and the centromeric region of autosomal groups A-D.
L R, McNally, M L, Beck, C J, Biggers
openaire   +3 more sources

Improving Cry8Ka toxin activity towards the cotton boll weevil (Anthonomus grandis) [PDF]

BMC Biotechnology, 2011
Background The cotton boll weevil (Anthonomus grandis) is a serious insect-pest in the Americas, particularly in Brazil. The use of chemical or biological insect control is not effective against the cotton boll weevil because of its endophytic life style.
Gomes José E, Souza Djair SL, Beneventi Magda A, Firmino Alexandre AP, Nakasu Erich YT, Lucena Wagner A, Silva Maria CM, Oliveira Gustavo R, de Souza José DA, Rigden Daniel J, Ramos Hudson B, Soccol Carlos R, Grossi-de-Sa Maria F   +12 more
doaj   +3 more sources

Fertility Life Table, Thermal Requirements, and Ecological Zoning of Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae) in Brazil. [PDF]

Insects, 2023
The boll weevil, Anthonomus grandis grandis Boh., is the most important cotton pest in Central and South America. The biological characteristics and thermal requirements of boll weevils reared on an artificial diet were assessed at seven constant temperatures (18, 20, 22, 25, 28, 30, and 32 ± 1 °C) under laboratory conditions.
Pereira FP, Diniz AJF, Parra JRP.
europepmc   +4 more sources

The Transcriptomic Response of the Boll Weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), following Exposure to the Organophosphate Insecticide Malathion. [PDF]

Insects, 2023
Insecticide tolerance and resistance have evolved countless times in insect systems. Molecular drivers of resistance include mutations in the insecticide target site and/or gene duplication, and increased gene expression of detoxification enzymes. The boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is a pest of commercial ...
Perkin LC, Cohen ZP, Carlson JW, Suh CP.
europepmc   +4 more sources

Discrimination of infested cotton squares by females of Anthonomus grandis

Journal of Pest Science, 2017
The avoidance of infested squares of Gossypium hirsutum as oviposition substrate by females of Anthonomus grandis was studied following two approaches. First, the preference for oviposition in infested versus non-infested squares was studied in laboratory. Second, the distribution of ovipositions by A.
Ana Laura Nussenbaum, F. Devescovi, M. N. Fogar, M. S. Almada, J. C. Salerno, J. L. Cladera, R. E. Lecuona, D. F. Segura   +7 more
openaire   +2 more sources

Evaluación de la toxicidad de proteínas de Bacillus thuringiensis Berliner sobre el picudo del algodonero Anthonomus grandis Boheman [PDF]

Agronomía Colombiana, 2006
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Gómez Sylvia, Díaz Gustavo, Nuñez Victor Manuel   +2 more
doaj   +1 more source

Seleção de isolados de Beauveria bassiana patogênicos ao bicudo-do-algodoeiro [PDF]

Pesquisa Agropecuária Brasileira, 2001
Objetivou-se selecionar isolados de Beauveria bassiana (Balsamo) Vüillemin provenientes de diferentes hospedeiros e regiões geográficas, patogênicos ao Anthonomus grandis, o bicudo-do-algodoeiro.
Carlos Alberto Domingues da Silva
doaj   +1 more source

Mortality of the cotton boll weevil in drip and sprinkler irrigated cotton crops

Brazilian Journal of Biology, 2021
The cotton boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is a key cotton crop pest in Brazil. Adverse climatic factors, such as high temperatures and low soil moisture, dehydrate oviposited cotton squares (bud flowers) on ...
R.F. Faustino, C.A.D. Silva, J.C. Zanuncio, J.R. Pereira, A.I.A. Pereira   +4 more
doaj   +1 more source

Selection of entomopathogenic fungi to control stink bugs and cotton boll weevil

Pesquisa Agropecuária Tropical, 2023
Entomopathogenic fungi stand out in the biological control of several agriculturally important insects. Six isolates of Metarhizium anisopliae, Cordyceps javanica, Beauveria sp. and B.
Larissa Moreira de Sousa, Eliane Dias Quintela, Heloiza Alves Boaventura, José Francisco Arruda e Silva, Bruna Mendes Diniz Tripode, José Ednilson Miranda   +5 more
doaj   +1 more source

Estimation of predation rate and handling time of boll weevil larvae by Marava arachidis (Dermaptera: Labiidae) using different mathematical methods [PDF]

Brazilian Journal of Biology
Anthonomus grandis grandis (Coleoptera: Curculionidae) is a pest with a large potential for destruction in cotton crops, causing damage to the cotton reproductive structures.
J. G. Silva Neto, T. G. F. Silva, A. S. Salustino, E. L. Leite, K. G. Abreu, A. S. Silva, J. L. Batista, C. H. Brito, E. K. Araújo, B. A. P. Cândido, I. V. I. Silva, C. R. S. M. Viagem, I. M. Buenaventura Ramírez, D. F. Correia Neto, J. B. Malaquias   +14 more
doaj   +1 more source