Results 101 to 110 of about 13,777 (237)

Exploring marking methods for the predatory hoverfly Sphaerophoria rueppellii (Diptera: Syrphidae)

Insect Science, EarlyView.
As important pollinators and predators of aphids, hoverflies play an important role in ecosystems. This study focuses on identifying the best marking technique for the model species Sphaerophoria rueppellii that can be used to track hoverfly feeding and oviposition sites, evaluating three methods: rubidium (RbCl), fluorescein, and fluorescent dusts ...
Michele Violi, Elena Costi, Elena Monari, Daniele Sommaggio, Lara Maistrello   +4 more
wiley   +1 more source

Adult mosquitoes of the sibling species Anopheles gambiae and Anopheles coluzzii exhibit contrasting patterns of susceptibility to four neonicotinoid insecticides along an urban-to-rural gradient in Yaoundé, Cameroon

Malaria Journal
Background Neonicotinoids are potential alternatives for controlling pyrethroid-resistant mosquitoes, but their efficacy against malaria vector populations of sub-Saharan Africa has yet to be investigated.
Fred A. Ashu, Caroline Fouet, Marilene M. Ambadiang, Véronique Penlap-Beng, Colince Kamdem   +4 more
doaj   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Time-dependent toxicity of neonicotinoids and other toxicants: Implications for a new approach to risk assessment [PDF]

, 2011
A fundamental goal of toxicology is to determine safe levels of exposure to potentially poisonous substances for humans and the environment. Traditionally, safe levels of a chemical have been derived from the non-observable effect level (NOEL) estimated ...
Sanchez-Bayo, FP, Tennekes, HA
core   +1 more source

Anholocyclic overwintering of Myzus persicae: Host plant selection as a driver for aphid performance and survival

Annals of Applied Biology, EarlyView.
The green peach aphid, Myzus persicae, is the main virus vector in sugar beet. We examine its performance on potential winter hosts as well as the host selection and overwintering success of anholicyclic aphids in order to improve forecasting models for virus outbreaks through targeted monitoring of suitable winter hosts. Abstract Virus yellows (VY) is
Mohamed Matared, Johannes Hausmann, Christoph Joachim   +2 more
wiley   +1 more source

Recent advances in the removal of neonicotinoid insecticides: classical approaches and nanomaterial applications

Discover Chemistry
Neonicotinoids are among the primary insecticides used globally, distinguished by their high efficiency against insects and low toxicity to mammals. They exhibit significant solubility and persistence in soils, making them ideal as systemic insecticides.
Erwin García-Hernández, Rafael Catarino-Centeno, Cristina Cuautli, Hugo Suárez-Hernández   +3 more
doaj   +1 more source

Comparative chronic toxicity of three neonicotinoids on New Zealand packaged honey bees.

PLoS ONE, 2018
BackgroundThiamethoxam, clothianidin, and imidacloprid are the most commonly used neonicotinoid insecticides on the Canadian prairies. There is widespread contamination of nectar and pollen with neonicotinoids, at concentrations which are sublethal for ...
Sarah C Wood, Ivanna V Kozii, Roman V Koziy, Tasha Epp, Elemir Simko   +4 more
doaj   +1 more source

Neonicotinoid pesticide limits improvement in buzz pollination by bumblebees [PDF]

, 2017
Neonicotinoid pesticides have been linked to global declines of beneficial insects such as bumblebees. Exposure to trace levels of these chemicals causes sub-lethal effects, such as reduced learning and foraging efficiency.
A David, AL Russell, BA Woodcock, C Botías, C Botías, C Ellis, CH Krupke, CM Switzer, D Goulson, DA Stanley, DA Stanley, DA Stanley, DA Stanley, E Stokstad, GC Cutler, GL Baron, H Feltham, HCJ Godfray, LD Harder, LW Macior, M Henry, M Rundlöf, MEM Vallejo-Marín, MJ King, NE Raine, NE Raine, P Jeschke, P Whitehorn, PA Luca De, PA Luca De, RJ Gill, RJ Gill, SL Buchmann, SM Williamson, T Blacquière, T Morgan, TC Ings   +36 more
core   +4 more sources

Degree of insecticide exposure and access to nectar impact survival of Trissolcus japonicus, a hymenopteran parasitoid, in flowering border strips

Agricultural and Forest Entomology, EarlyView.
We applied three thiamethoxam spray treatments to buckwheat border strips: control (no nearby spray), drift (adjacent peach trees directly sprayed) and direct spray (buckwheat and peaches directly sprayed). Drift‐treated buckwheat received about 1.4% the amount of thiamethoxam as direct‐spray buckwheat. This amount has no lethal effects on parasitoids,
Emma O. Waltman, Anne L. Nielsen
wiley   +1 more source

Management and drivers of change of pollinating insects and pollination services. National Pollinator Strategy: for bees and other pollinators in England, Evidence statements and Summary of Evidence [PDF]

These Evidence Statements provide up-to-date information on what is known (and not known) about the status, values, drivers of change, and responses to management of UK insect pollinators (as was September 2018). This document has been produced to inform
Baldock, K.C.R, Breeze, T. D., Brown, M.J.F., Carvell, C., Dicks, L.V., Garratt, M. P., Norman, H., Potts, S. G., Senapathi, D., Steele, D. J., Vanbergen, A.J.   +10 more
core