Results 81 to 90 of about 32,166 (260)

Chitosan‐protected dsRNA increases efficacy against Helicoverpa armigera without compromising biosafety for pollinators

Pest Management Science, EarlyView.
Chitosan/tripolyphosphate/double‐stranded RNA (dsRNA) nanoparticles enhance RNA interference efficacy of orally delivered dsRNA against Helicoverpa armigera. Nanoparticles reduce the LC50 and do not cause deleterious effects or toxicity on beneficial insects.
Daniel DN Vasquez, Lays A Teixeira, Rangel F Alves, Raire Cavalcante, Leonardo LP Macedo, Carmen SS Pires, Luciano P Silva, Maria CM Silva, Feras M Afifi, Carolina V Morgante, Martin G Edwards, Angharad MR Gatehouse, Maria F Grossi‐de‐Sa   +12 more
wiley   +1 more source

Status and Management of Pyrethroid Resistance in the Predatory Mite, \u3ci\u3eAmblyseius Fallacis\u3c/i\u3e (Acarina: Phytoseiidae) [PDF]

, 2017
Low levels of (5-15 fold) resistance to synthetic pyrethroid (SP) insecticides occur in unexposed apple orchard populations of the predatory mite, Amblyseius fallacis Garman.
Croft, B. A
core   +2 more sources

Commercial permethrin elicits chemoreceptive responses on different Anopheles gambiae sensory appendages

Pest Management Science, EarlyView.
Anopheles gambiae mosquitoes exhibit takeoff responses when presented to commercial permethrin headspace. This product elicits electrophysiological activity in the antennae and tarsi. However, only the chemical information acquired from the tarsi plays a major role in the observed behavioral response.
Sassan S Kambou, Adeline Valente, Philip Agnew, Anna Cohuet, David Carrasco   +4 more
wiley   +1 more source

Current resistance status of Aedes aegypti and Aedes albopictus populations in Penang Island, Malaysia

Asian Pacific Journal of Tropical Medicine
Objective: To determine the current insecticide resistance status of Aedes (Ae.) aegypti and Ae. albopictus to four insecticides, namely 0.05% deltamethrin, 0.75% permethrin, 5% malathion and 0.25% pirimiphos–methyl using the World Health Organisation ...
Kin Hoong Ng, Wan Fatma Zuharah
doaj   +1 more source

Combining unrelated insecticides for improved control and management of insecticide resistant African malaria vectors [PDF]

It is now generally accepted that if nothing is done and insecticide resistance in malaria vectors especially to pyrethroids eventually led to widespread failure of current vector control strategies, the progress achieved so far in reducing the burden of
Ngufor, CA
core   +1 more source

Temporal and spatial variations in lice numbers on salmon farms in the Hardanger fjord 2004-06 [PDF]

, 2009
The long and narrow Hardanger fjord in western Norway has a high density of salmon farms and has had severe salmon lice, Lepeophtheirus salmonis, problems.
Bjørn, Bricknell, Bush, Finstad, Hahnenkamp, Heuch, Heuch, Heuch, Heuch, Jaworski, Johnson, Johnson, Johnson, Kålås, Lees, McLean, Olsen, Olsen, Otterå, Revie, Revie, Stone, Tucker, Tully   +23 more
core   +1 more source

Grass species and climatic season impact on Rhipicephalus microplus temporal abundance in a tropical region

Pest Management Science, EarlyView.
The interaction between grass species and climatic season shapes the population dynamics of the cattle tick, Rhipicephalus microplus. This information highlights the potential of forage species to influence off‐host tick dynamics. Additionally, minimum temperature and minimum relative humidity were the most influential microclimatic predictors of ...
Valesca Henrique Lima, Cárita de Souza Ribeiro‐Silva, Salorrane Miranda do Nascimento Pinto, Caio Márcio de Oliveira Monteiro, Pricila Vetrano Rizzo, Fernanda Mara Cunha Freitas, Rafael de Andrade Moral, Gabriel Moura Mascarin, Éverton Kort Kamp Fernandes   +8 more
wiley   +1 more source

Validation of a multi-residue method to determine deltamethrin and alpha-cypermethrin in mosquito nets by gas chromatography with electron capture detection (GC-µECD) [PDF]

, 2013
Background: Nowadays long-lasting insecticidal mosquito nets (LNs) are frequently used around the world to protect people against malaria vectors. As they contain insecticide, laboratory control is needed to check whether the content of the active ...
Ouattara, Jean Pierre Nabléni, Pigeon, Olivier, Spanoghe, Pieter   +2 more
core   +2 more sources

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source

Western corn rootworm pyrethroid resistance confirmed by aerial application simulations of commercial insecticides [PDF]

, 2019
The western corn rootworm (Diabrotica virgifera virgifera LeConte) (WCR) is a major insect pest of corn (Zea mays L.) in the United States (US) and is highly adaptable to multiple management tactics.
Fritz, Bradley K., Hoffmann, Wesley C., Kruger, Greg, Meinke, Lance J., Peterson, Julie A., Souza, Dariane, Vieira, Bruno C.   +6 more
core   +1 more source