Simultaneous silencing of juvenile hormone metabolism genes through RNAi interrupts metamorphosis in the cotton boll weevil [PDF]
Frontiers in Molecular Biosciences, 2023 The cotton boll weevil (CBW) (Anthonomus grandis) is one of the major insect pests of cotton in Brazil. Currently, CBW control is mainly achieved by insecticide application, which is costly and insufficient to ensure effective crop protection.
Daniel D. N. Vasquez +21 more
doaj +5 more sources
Planting Date of Cotton in the Brazilian Cerrado Drives Boll Weevil (Coleoptera: Curculionidae) Infestation [PDF]
Insects, 2023 Although the boll weevil (BW), Anthonomus grandis grandis (Coleoptera: Curculionidae) has been attributed to the significant losses caused to cotton yield in the Americas, the categorization as a quarentenary pest in places where it is still not ...
Patrícia J. Santos +7 more
doaj +5 more sources
Mortality of the cotton boll weevil in drip and sprinkler irrigated cotton crops [PDF]
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 +4 more
doaj +3 more sources
Effect of Different Lignocellulosic Diets on Bacterial Microbiota and Hydrolytic Enzyme Activities in the Gut of the Cotton Boll Weevil (Anthonomus grandis). [PDF]
Front Microbiol, 2016 Cotton boll weevils, Anthonomus grandis, are omnivorous coleopteran that can feed on diets with different compositions, including recalcitrant lignocellulosic materials.
Ben Guerrero E +6 more
europepmc +4 more sources
Improving Cry8Ka toxin activity towards the cotton boll weevil (
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 +12 more
doaj +5 more sources
Nicotiana benthamiana is a suitable transient system for high-level expression of an active inhibitor of cotton boll weevil α-amylase [PDF]
BMC 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 +3 more sources
RNAi-Mediated Suppression of Laccase2 Impairs Cuticle Tanning and Molting in the Cotton Boll Weevil (Anthonomus grandis) [PDF]
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 +24 more
doaj +3 more sources
Nucleases as a barrier to gene silencing in the cotton boll weevil, Anthonomus grandis. [PDF]
PLoS ONE, 2017 RNA interference (RNAi) approaches have been applied as a biotechnological tool for controlling plant insect pests via selective gene down regulation. However, the inefficiency of RNAi mechanism in insects is associated with several barriers, including ...
Rayssa Almeida Garcia +8 more
doaj +3 more sources
Vitellogenin knockdown strongly affects cotton boll weevil egg viability but not the number of eggs laid by females. [PDF]
Meta Gene, 2016 Vitellogenin (Vg), a yolk protein precursor, is the primary egg nutrient source involved in insect reproduction and embryo development. The Cotton Boll weevil (CBW) Anthonomus grandis Boheman, the most important cotton pest in Americas, accumulates large
Coelho RR +9 more
europepmc +3 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.
Lindsey C. Perkin +3 more
doaj +3 more sources