Results 11 to 20 of about 11,920 (215)

Nicotiana benthamiana is a suitable transient system for high-level expression of an active inhibitor of cotton boll weevil α-amylase [PDF]

open access: yesBMC Biotechnology, 2019
Background Insect resistance in crops represents a main challenge for agriculture. Transgenic approaches based on proteins displaying insect resistance properties are widely used as efficient breeding strategies.
Guilherme Souza Prado   +12 more
doaj   +2 more sources

Boll Weevil (Coleoptera: Curculionidae) Feeding and Reproduction as Functions of Cotton Square Availability [PDF]

open access: yesEnvironmental Entomology, 2003
The influence of food item availability on boll weevil, Anthonomus grandis grandis Boheman, feeding and reproduction was determined by providing different numbers of cotton squares (flower buds) to individual weevils.
Greenberg, Shoil   +4 more
exaly   +3 more sources

Isolation and characterization of polymorphic microsatellite loci in the boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae) [PDF]

open access: yesMolecular Ecology Notes, 2004
The boll weevil (Anthonomus grandis Boheman) is a major insect pest of cotton in North America. Dispersal activity poses a threat to ongoing eradication efforts in the US, but little is known about the frequency of long-distance migration.
Kyung Seok Kim, Thomas W Sappington
exaly   +4 more sources

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

open access: yesPLoS 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   +10 more
doaj   +2 more sources

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

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

open access: yesBrazilian 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   +4 more
doaj   +1 more source

A New qPCR Assay for the Rapid Diagnosis of Anthonomus grandis Subspecies

open access: yesInsects, 2023
Rapid and accurate identification of Anthonomus grandis subspecies is crucial for effective management and eradication. Current diagnostic methods have limitations in terms of time to diagnosis (up to seven days) and can yield ambiguous results. Here, we
Tyler Jay Raszick   +8 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

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

open access: yesTropical 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   +6 more
doaj   +1 more source

The genome and stage-specific transcriptomes of the carrot weevil, Listronotus oregonensis, reveal adaptive mechanisms for host specialisation and symbiotic interactions. [PDF]

open access: yesInsect Mol Biol
Comprehensive genome and stage‐specific transcriptomes reveal 14,637 genes in Listronotus oregonensis, advancing genetic insights into a key agricultural pest. Compared with related species, L. oregonensis exhibits reduced chemoreceptor gene families but expanded detoxification gene clusters, reflecting its narrow host range and adaptability.
Ste-Croix DT, Gagnon AÈ, Mimee B.
europepmc   +2 more sources

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