Results 11 to 20 of about 252,148 (205)

Parasitoids of boll weevil Anthonomus grandis and resident predators in kaolin-treated cotton [PDF]

open access: yesSemina: Ciências Agrárias, 2013
Simultaneous use of control methods is essential to reach success in managing arthropod pests. The current study investigated the effect of kaolin application on resident predators in the cotton plant canopy and parasitism of boll weevil on abscised ...
Roberta Leme Santos   +3 more
doaj   +2 more sources

Transgenic cotton plants expressing Cry1Ia12 toxin confer resistance to fall armyworm (Spodoptera frugiperda) and cotton boll weevil (Anthonomus grandis) [PDF]

open access: yesFrontiers in Plant Science, 2016
Gossypium hirsutum (commercial cooton) is one of the most economically important fibers sources and a commodity crop highly affected by insect pests and pathogens.
Raquel Sampaio Oliveira   +9 more
doaj   +2 more sources

Bacillus thuringiensis Bt_UNVM-84, a Novel Strain Showing Insecticidal Activity against Anthonomus grandis Boheman (Coleoptera: Curculionidae) [PDF]

open access: yesToxins, 2023
Bacillus thuringiensis is a Gram-positive bacterium known for its insecticidal proteins effective against various insect pests. However, limited strains and proteins target coleopteran pests like Anthonomous grandis Boheman, causing substantial economic ...
Diego Herman Sauka   +6 more
doaj   +2 more sources

Survival and preference of cotton boll weevil adults for alternative food sources

open access: yesBrazilian Journal of Biology
Plants that have potential as alternative food source (floral nectar, pollen and plant tissues) to the boll weevil during the intercropping season were evaluated considering the prevalent conditions of Cerrado in the Central Brazil.
M. Pimenta   +6 more
doaj   +2 more sources

Mechanical damage in cotton buds caused by the boll weevil

open access: yesPesquisa Agropecuária Brasileira, 2003
The boll weevil (Anthonomus grandis Boheman) causes high levels of bud abscission in cotton plants due to feeding or oviposition punctures. It has been reported that abscission is mainly due to enzymes present in the insect's saliva, but mechanical ...
Santos Roseane Cavalcanti   +3 more
doaj   +1 more source

From flower buds to bolls: how cotton reproductive structures shape boll weevil development, reproduction and survival. [PDF]

open access: yesPest Manag Sci
Female boll weevils feeding on flower buds promote reproduction regardless of their immature diet, whereas boll feeding increases lipid reserves and lifespan, revealing a nutrition‐driven trade‐off that sustains survival and reproduction in tropical boll weevil populations.
Ramos Coelho R   +5 more
europepmc   +2 more sources

Population Genomics Approaches Identify a Cryptic, Emerging Generalist Pest Complex. [PDF]

open access: yesEcol Evol
Molecular gut content analysis and RAD‐seq analysis revealed a peanut pest complex where previously only one species was considered problematic. Both species exhibited a wide, but somewhat distinct, variety of plants among their diets, and peanut‐feeding was rare. Diet generalism combined with a stepwise pattern of dispersal among fields might underlie
Rodrigues PAP   +7 more
europepmc   +2 more sources

The Identification of Boll Weevil, Anthonomus grandis grandis (Coleoptera: Curculionidae), Genes Involved in Pheromone Production and Pheromone Biosynthesis

open access: yesInsects, 2021
Eradication programs for the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), rely almost exclusively on pheromone traps to indicate the need for insecticide applications.
Lindsey C. Perkin   +2 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

open access: yesJournal 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   +7 more
doaj   +1 more source

Economic Evaluation of Beltwide Boll Weevil/Cotton Insect Management Programs (Appendix B) [PDF]

open access: yes, 2023
Alternative boll weevil/cotton insect management programs were evaluated for their effects on net market benefits and for their distributive impacts on producers and consumers.
Economic Evaluation Team, USDA Interagency Working Group on Boll Weevil Programs
core   +1 more source

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