Results 81 to 90 of about 23,677 (262)

Diversity of insects under the effect of Bt maize and insecticides

Arquivos do Instituto Biológico, 2018
: The genetically modified maize to control some caterpillars has been widely used in Brazil. The effect of Bt maize and insecticides was evaluated on the diversity of insects (species richness and abundance), based on the insect community, functional ...
Marina Regina Frizzas, Charles Martins de Oliveira, Celso Omoto   +2 more
doaj   +1 more source

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

Effects of pyrethroid insecticides on subjects engaged in packaging pyrethroids. [PDF]

Occupational and Environmental Medicine, 1988
A health survey was conducted on 199 workers engaged in dividing and packaging pyrethroids. The subjects were exposed to fenvalerate at 0.012-0.055 mg/m3 and deltamethrin at 0.005-0.012 mg/m3 in the air with simultaneous skin contact for 0.5-4.5 months.
F, He, J, Sun, K, Han, Y, Wu, P, Yao, S, Wang, L, Liu   +6 more
openaire   +2 more sources

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

The Differential Effect of Low-Dose Mixtures of Four Pesticides on the Pea Aphid Acyrthosiphon pisum

Insects, 2016
The modes of action of most insecticides are known, but little information exists regarding the toxicological interactions involving insecticide mixtures at low doses.
Emiliane Taillebois, Steeve H. Thany
doaj   +1 more source

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

Pest Management Science, EarlyView.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares, Thalya Soares Ribeiro Nogueira, Maria Aparecida Aride Bertonceli, Renata Rodrigues da Silva Robaina, Leticia Oliveira da Rocha, Francisco José Alves Lemos, Kátia Valevski Sales Fernandes, Raimundo Braz‐Filho, Ivo José Curcino Vieira   +8 more
wiley   +1 more source

Degradation of insecticides used for indoor spraying in malaria control and possible solutions

Malaria Journal, 2011
Background The insecticide dichloro-diphenyl-trichloroethane (DDT) is widely used in indoor residual spraying (IRS) for malaria control owing to its longer residual efficacy in the field compared to other World Health Organization (WHO) alternatives ...
Massinga Pedro, Muiambo Herminio, Maity Arjun, Nhlapo Nontete S, Moyo Lumbidzani, Labuschagne Frederick JWJ, Focke Walter W, Sibanda Mthokozisi M, Crowther Nico AS, Coetzee Maureen, Brindley Gordon WA   +10 more
doaj   +1 more source

Synergistic transition from type‐I‐like to type‐II‐like symptomology in a pyrethroid mixture and its impact on knockdown–mortality relationships in Musca domestica L

Pest Management Science, EarlyView.
In the present study, relationship between knockdown and mortality of insecticides was examined against the adult female housefly, Musca domestica. Type‐I pyrethroid insecticides showed a weak linkage, as early knocked down flies did not always result in mortality, while type‐II pyrethroids and organophosphates exhibited strong correlation between the ...
Junho Yoon, Jun‐Hyung Tak
wiley   +1 more source

Accidental Pyrethroid Ingestion in Toddler: Near-Fatal Atypical Presentation and Successful Recovery

Frontiers in Pediatrics, 2020
We are reporting a case of pyrethroid poisoning with atypical presentation in a 21-month-old toddler who was transferred to us from a peripheral center. Signs and symptoms at presentation were predominantly of cardiopulmonary dysfunction contrary to more
Marco Pallavidino, Diego Arango Uribe, Subashini Baskaran, Aqdas Saqib, Mohamed Elmesserey, Ahmed Onsy, Emad M. Fathi, Christoph Fink, Anil Kumar H. Ramaiah   +8 more
doaj   +1 more source

Behavioural manipulation of the cabbage stem flea beetle (Psylliodes chrysocephala L): Prospects for push–pull strategies in oilseed rape

Pest Management Science, EarlyView.
Behavioural manipulation of Psylliodes chrysocephala provides promising opportunities for sustainable pest management in oilseed rape systems. This review synthesises evidence on glucosinolates and their volatile isothiocyanate derivatives as phagostimulants and attractants, alongside the repellent or antifeedant effects of non‐host plants, plant ...
Suleiman Mustapha, Patricia A Ortega‐Ramos, Jozsef Vuts, Tariq M Butt, E. Joel Loveridge, Daniel Rüde, Samantha M Cook   +6 more
wiley   +1 more source