Results 21 to 30 of about 4,134 (201)

Transcriptome analysis in cotton boll weevil (Anthonomus grandis) and RNA interference in insect pests. [PDF]

PLoS ONE, 2013
Cotton plants are subjected to the attack of several insect pests. In Brazil, the cotton boll weevil, Anthonomus grandis, is the most important cotton pest.
Alexandre Augusto Pereira Firmino, Fernando Campos de Assis Fonseca, Leonardo Lima Pepino de Macedo, Roberta Ramos Coelho, José Dijair Antonino de Souza, Roberto Coiti Togawa, Orzenil Bonfim Silva-Junior, Georgios Joannis Pappas, Maria Cristina Mattar da Silva, Gilbert Engler, Maria Fatima Grossi-de-Sa   +10 more
doaj   +1 more source

RNAi-Mediated Suppression of Laccase2 Impairs Cuticle Tanning and Molting in the Cotton Boll Weevil (Anthonomus grandis)

Frontiers in Physiology, 2020
The cotton boll weevil, Anthonomus grandis, is the most economically important pest of cotton in Brazil. Pest management programs focused on A. grandis are based mostly on the use of chemical insecticides, which may cause serious ecological impacts ...
Alexandre Augusto Pereira Firmino, Alexandre Augusto Pereira Firmino, Daniele Heloísa Pinheiro, Clidia Eduarda Moreira-Pinto, Clidia Eduarda Moreira-Pinto, José Dijair Antonino, José Dijair Antonino, Leonardo Lima Pepino Macedo, Diogo Martins-de-Sa, Fabrício Barbosa Monteiro Arraes, Fabrício Barbosa Monteiro Arraes, Fabrício Barbosa Monteiro Arraes, Roberta Ramos Coelho, Fernando Campos de Assis Fonseca, Fernando Campos de Assis Fonseca, Maria Cristina Mattar Silva, Maria Cristina Mattar Silva, Janice de Almeida Engler, Janice de Almeida Engler, Marília Santos Silva, Isabela Tristan Lourenço-Tessutti, Walter Ribeiro Terra, Maria Fátima Grossi-de-Sa, Maria Fátima Grossi-de-Sa, Maria Fátima Grossi-de-Sa   +24 more
doaj   +1 more source

Competition between Catolaccus grandis (Hymenoptera: Pteromalidae) and Bracon vulgaris (Hymenoptera: Braconidae), parasitoids of the Boll Weevil

Brazilian Archives of Biology and Technology, 2007
The competition between populations of the parasitoids C. grandis and B. vulgaris was studied using larvae of Euscepes postfasciatus (Fairmaire) as an alternative host.
Francisco de Sousa Ramalho, Ana Maria Camêlo da Silva, José Cola Zanuncio, José Eduardo Serrão   +3 more
doaj   +1 more source

PARASITISM OF BOLL WEEVIL (Anthonomus grandis) IN FLOWER BUDS OF COTTON PLANT, IN THE MUNICIPAL DISTRICT OF GOIÂNIA-GO PARASITISMO DO BICUDO DO ALGODOEIRO (Anthonomus grandis) EM BOTÕES FLORAIS DO ALGODOEIRO, NO MUNICÍPIO DE GOIÂNIA-GO

Pesquisa Agropecuária Tropical, 2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify">This work studied the indexes of parasitism of <em>A. grandis</em> in floral buttons of the cotton plants, collected in the soil and in the plants, in an area not ...
Paulo Marçal Fernandes, Julio Cézar Silveira Nunes   +1 more
doaj   +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

Risk of control failure to insecticides malathion, profenophos + cypermethrin mixture, and fipronil in boll weevil (Coleoptera: Curculionidae) populations from Bahia, Brazil

Journal of Cotton Research, 2023
Background To control the boll weevil Anthonomus grandis grandis (Coleoptera: Curculionidae), a key pest of cotton in the Americas, insecticides have been intensively used to manage their populations, increasing selection pressure for resistant ...
Beatriz S. Coelho, Suzany A. Leite, Mateus P. dos Santos, Raul N. C. Guedes, Cristina S. Bastos, Aldenise A. Moreira, João E. V. Bonfim, Maria A. Castellani   +7 more
doaj   +1 more source

Effect of diameter of the cotton squares in the development of boll weevil (1). [PDF]

, 2020
O objetivo deste trabalho foi estudar o efeito do diâmetro dos botões florais de algodoeiro na massa corporal de adultos do bicudo-do-algodoeiro, Anthonomus grandis Boheman (Coleoptera: Curculionidae).
ADAIME, R., BUSOLI, A. C., CHAGAS FILHO, N. R., MICHELOTTO, M. D.   +3 more
core  

Infestação do bicudo-do-algodoeiro em função da densidade de plantas e época do cultivo [PDF]

, 2016
Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2016.O bicudo-do-algodoeiro é uma das pragas de maior relevância da agricultura no Brasil.
Dias, Antonio Macedo
core   +1 more source

Spatial distribution of adult Anthonomus grandis Boheman (Coleoptera: Curculionidae) and buds with feeding punctures on conventional and Bt cotton
Distribuição espacial de adultos e botões com orifício de alimentação de Anthonomus grandis Boheman (Coleoptera: Curculionidae) em algodoeiro convencional e Bt

Semina: Ciências Agrárias, 2013
O conhecimento dos arranjos de dispersão para adultos e botões com orifício de alimentação de Anthonomus grandis em cultivares de algodoeiro é necessário para aperfeiçoar o monitoramento e controle da praga.
Paulo Rogerio Beltramin da Fonseca, Marcos Gino Fernandes, Paulo Eduardo Degrande, Thiago Alexandre Mota, Samir Oliveira Kassab   +4 more
doaj   +1 more source

A Review on Evolution of Cotton in Brazil: GM, White, and Colored Cultivars

Journal of Natural Fibers, 2022
Cotton is the main natural fiber grown all over the world. Despite the wide economic importance, cotton faces a strong competition with polyester and other synthetic fibers.
Maria Auxiliadora Lemos Barros, Carliane Rebeca Coelho Da Silva, Liziane Maria De Lima, Francisco José Correia Farias, Gilvan Alves Ramos, Roseane Cavalcanti Dos Santos   +5 more
doaj   +1 more source