Results 51 to 60 of about 13,533 (233)

HvarAKR1B1‐mediated tolerance in Hippodamia variegata: Deciphering the metabolic adaptation and fitness costs under prolonged starvation

Pest Management Science, EarlyView.
Starvation stress significantly affected the growth and development of Hippodamia variegata. Combined transcriptome and metabolome analysis and RNA interference verification revealed that HvarAKR1B1 may be involved in the response of Hippodamia variegata to starvation stress.
Bing‐mei Song, De‐qin Hu, Yuan Li, Wang‐quan Jiao, Xiao‐li Ma, Hong‐sheng Pan   +5 more
wiley   +1 more source

Insensitive acetylcholinesterase and resistance to organophosphates in Australian Helicoverpa armigera

, 1998
Organophosphates are valuable insecticides used to control Helicoverpa armigera on cotton in Australia. Those most commonly used for Helicoverpa spp. control are profenofos, parathion-methyl and chlorpyrifos. However, there is an emerging organophosphate-
Gunning, R. V., Moores, G. D., Devonshire, A. L.   +2 more
core   +1 more source

Multiple recombination events between two cytochrome P450 loci contribute to global pyrethroid resistance in Helicoverpa armigera. [PDF]

PLoS ONE, 2018
The cotton bollworm, Helicoverpa armigera (Hübner) is one of the most serious insect pest species to evolve resistance against many insecticides from different chemical classes.
Thomas K Walsh, Nicole Joussen, Kai Tian, Angela McGaughran, Craig J Anderson, Xinghui Qiu, Seung-Joon Ahn, Lisa Bird, Nena Pavlidi, John Vontas, Jaeeun Ryu, Akhtar Rasool, Isabella Barony Macedo, Wee Tek Tay, Yongjun Zhang, Mary E A Whitehouse, Pierre Jean Silvie, Sharon Downes, Lori Nemec, David G Heckel   +19 more
doaj   +1 more source

Mapping the global threat of Mythimna separata (Walker) and its economic implications for Brazil's agriculture

Pest Management Science, EarlyView.
Global models identified high‐risk areas for Mythimna separata invasion, highlighting major economic vulnerability for Brazilian crops and guiding targeted prevention and management strategies. Abstract BACKGROUND Identifying high‐risk areas for the introduction of invasive alien species is particularly important for agricultural pests with a broad ...
Gabriel Dorotel da Silva Ferreira, Cesar Augusto Marchioro   +1 more
wiley   +1 more source

Bt agave: why it is time to explore a new biotechnological frontier

Pest Management Science, EarlyView.
Drylands cover 41% of Earth, requiring sustainable crops. Agave, drought‐ and heat‐adapted, offers high‐value products with low water needs. Pests limit yield, yet Bacillus thuringiensis (Bt) Cry proteins, successful in other plants, remain unexploited in Agave.
Aline Vitória Corim Marim, Marcelo Falsarella Carazzolle, Gonçalo Amarante Guimarães Pereira, Carolina Rossi De Oliveira   +3 more
wiley   +1 more source

Identification of broadly expressed nervous system‐related genes as effective RNAi targets in the brown marmorated stink bug, Halyomorpha halys

Pest Management Science, EarlyView.
Broadly expressed genes outperformed brain‐enriched neural targets as RNAi candidates in Halyomorpha halys. Microinjection of dsRNA targeting alpha‐soluble NSF attachment protein (Asnap) or Ras opposite protein (Rop) caused strong feeding suppression and near‐complete mortality, identifying them as promising targets for future oral or spray‐based RNAi ...
Nirakar Panda, Aline Koch, Venkata Partha Sarathi Amineni   +2 more
wiley   +1 more source

Field performance of MON 94637 and laboratory evidence supporting a Bt pyramiding strategy against key lepidopteran pests in Brazil

Pest Management Science, EarlyView.
A genetically modified soybean expressing multiple Cry proteins protects against key lepidopteran pests, consistently reducing larval damage and offering an effective resistance management option for soybean production in Brazil. Abstract BACKGROUND Pyramided Bt genes in crops have been widely adopted to delay insect resistance evolution worldwide. The
Leonardo L Miraldo, Joacir do Nascimento, Thais LB dos Santos, Hallison V Vertuan, Luciana V Machado, Augusto C Crivellari, Márcia OMA José, Jessica Fernandez, Erick MG Cordeiro, Paula M Antunes, Samuel Martinelli, Graham P Head, Katherine Caldwell, Uma Kesanapalli, Ester Buiate, Patrick M Dourado, Ramiro FL Ovejero, Geraldo U Berger, Renato J Horikoshi   +18 more
wiley   +1 more source

History and Current Status of Development and Use of Viral Insecticides in China

Viruses, 2015
The use of insect viruses as biological control agents started in the early 1960s in China. To date, more than 32 viruses have been used to control insect pests in agriculture, forestry, pastures, and domestic gardens in China. In 2014, 57 products from
Xiulian Sun
doaj   +1 more source

Binding site alteration is responsible for field-isolated resistance to Bacillus thuringiensis Cry2A insecticidal proteins in two Helicoverpa species. [PDF]

PLoS ONE, 2010
BackgroundEvolution of resistance by target pests is the main threat to the long-term efficacy of crops expressing Bacillus thuringiensis (Bt) insecticidal proteins.
Silvia Caccia, Carmen Sara Hernández-Rodríguez, Rod J Mahon, Sharon Downes, William James, Nadine Bautsoens, Jeroen Van Rie, Juan Ferré   +7 more
doaj   +1 more source

Soybean induced resistance to Spodoptera eridania herbivory

Pest Management Science, EarlyView.
SOD, CAT, APX, PPO, KTI, and MDA levels were higher in the resistant soybean. S. eridania herbivory increased H2O2 and MDA, but decreased SOD and PPO levels. S. eridania herbivory increased KTI activity only in the resistant variety. Isoquercitrin and daidzin were exclusive to resistant and susceptible soybeans.
Bruno Henrique Sardinha de Souza, Arlindo Leal Boiça Júnior, Durvalina Maria Mathias dos Santos, Moacir Rossi Forim, Antonio Pizolato Neto, Andreísa Fabri Lima, Michael Joseph Stout   +6 more
wiley   +1 more source