Results 41 to 50 of about 475,658 (237)

Efficacy of Conventional and Organic Insecticides against Scaphoideus titanus: Field and Semi-Field Trials

open access: yesInsects, 2023
Scaphoideus titanus is the main vector of phytoplasmas associated with Flavescence dorée (FD), one of the most serious threats to viticulture in many European countries.
Stefan Cristian Prazaru   +9 more
doaj   +1 more source

Implications of bio-efficacy and persistence of insecticides when indoor residual spraying and longlasting insecticide nets are combined for malaria prevention. [PDF]

open access: yes, 2012
Bio-efficacy and residual activity of insecticides used for indoor residual spraying (IRS) and long-lasting insecticide nets (LLINs) were assessed against laboratory-reared and wild populations of the malaria vector, Anopheles arabiensis in south eastern
Chipwaza, Beatrice   +8 more
core   +2 more sources

Variation in the susceptibility of Anopheles gambiae to botanicals across a metropolitan region of Nigeria [PDF]

open access: yes, 2019
Pesticide resistance is normally associated with genetic changes, resulting in varied responses to insecticides between different populations. There is little evidence of resistance to plant allelochemicals; it is likely that their efficacy varies ...
Callaghan, Amanda   +3 more
core   +2 more sources

Toxicity and residual activity of spinetoram to neonate larvae of Grapholita molesta (Busck) and Cydia pomonella (L.) (Lepidoptera: Tortricidae): Semi-field and laboratory trials [PDF]

open access: yes, 2016
Spinetoram is a fermentation insecticide, derived from the actinomycete Saccharopolyspora spinosa. It works by disrupting the GABA-gated chloride channels and by causing persistent activation of insect nicotinic acetylcholine receptors.
Avilla Hernández, Jesús   +4 more
core   +2 more sources

Current Research on the Safety of Pyrethroids Used as Insecticides

open access: yesMedicina, 2018
Pyrethroids are synthetic derivatives of natural pyrethrins extracted from Chrysanthemum cinerariaefolium. They are 2250 times more toxic to insects than to vertebrates due to insects’ smaller size, lower body temperature and more sensitive sodium ...
Agnieszka Chrustek   +6 more
semanticscholar   +1 more source

Combined Toxicity of Insecticides and Fungicides Applied to California Almond Orchards to Honey Bee Larvae and Adults

open access: yesInsects, 2019
Beekeepers providing pollination services for California almond orchards have reported observing dead or malformed brood during and immediately after almond bloom—effects that they attribute to pesticide exposure.
Andrea H. Wade   +4 more
semanticscholar   +1 more source

Efficacy of homemade botanical insecticides based on traditional knowledge. A review

open access: yesAgronomy for Sustainable Development, 2019
Homemade botanical insecticides are widely used by subsistence and transitional farmers in low-income countries. Their use is often driven by the limited availability or cost of commercial pesticides. Homemade botanical insecticides are often recommended
J. Dougoud   +3 more
semanticscholar   +1 more source

Control of Aphids on Spring Oats and Winter Wheat With Slow Release Granular Systemic Insecticides [PDF]

open access: yes, 2017
Aphid infestations (Homoptera: Aphididae) on spring oat (Avena sativa) cv. \u27Ogle\u27, and during the fall on winter wheat (Triticum aestivum) cv.
Araya, Jaime E, Cambron, Sue E
core   +3 more sources

CYP6AE gene cluster knockout in Helicoverpa armigera reveals role in detoxification of phytochemicals and insecticides

open access: yesNature Communications, 2018
The cotton bollworm Helicoverpa armigera, is one of the world’s major pest of agriculture, feeding on over 300 hosts in 68 plant families. Resistance cases to most insecticide classes have been reported for this insect.
Huidong Wang   +7 more
semanticscholar   +1 more source

Discovery and development of pyrethroid insecticides

open access: yesProceedings of the Japan Academy. Series B, Physical and biological sciences, 2019
Pyrethroid insecticides contain natural pyrethrins extracted from pyrethrum flowers, and their synthetic derivatives, pyrethroids. The present article provides an overview of the structure of natural pyrethrins, and the discovery and development of ...
N. Matsuo
semanticscholar   +1 more source

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