Results 11 to 20 of about 3,439 (204)

Pollen Exposed to Aerial Pesticide Spray Is a Major Exposure Pathway for Stingless Bees [PDF]

open access: yesEcology and Evolution
Testing possible exposure routes of pesticides is essential for assessing the risks to pollinators. In Australia, the pesticide Bacillus thuringiensis var. israelensis (Bti) is widely used in mosquito control programs and applied aerially to mangrove and
James P. Hereward   +7 more
doaj   +3 more sources

Evaluation of methoprene effect on Aedes aegypti (Diptera: Culicidae) development in laboratory conditions [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 2005
Several Brazilian Aedes aegypti populations are resistant to the larvicidae temephos. Methoprene, that inhibits adult emergence, is one of the alternatives envisaged by the Brazilian Dengue Control Program (PNCD).
Ima Aparecida Braga   +3 more
doaj   +5 more sources

Susceptibility of stored grain insects to the insect growth regulator methoprene [PDF]

open access: yesJulius-Kühn-Archiv, 2018
The insect growth regulator (IGR) methoprene is labeled in the United States (US) for direct application to stored grain commodities, and as a residual surface treatment to empty grain bins and flooring surfaces inside indoor structures.
Arthur, Frank H.
doaj   +2 more sources

Development and silk production by silkworm larvae after topical application of methoprene [PDF]

open access: yesScientia Agricola, 2002
Juvenile hormone analogues have been tested as insect growth regulators in silkworm (Bombyx mori), seeking an increment of silk production. These chemical products, when applied in small or moderate rates, promote the extension of the last larval instar.
Miranda José Ednilson   +2 more
doaj   +3 more sources

Methoprene, a Juvenile Hormone Analog, Causes Winter Diapause Elimination in Univoltine Bee Species Osmia bicornis L.

open access: yesAnimals, 2023
Osmia bicornis syn. O. rufa is a univoltine bee species in which adults fly in spring and the offspring overwinter as cocooned imagoes. The flight period of solitary bees is short, so methods of control for development and emergence time are needed to ...
Karol Giejdasz   +2 more
doaj   +2 more sources

Ligand-binding properties of a juvenile hormone receptor, Methoprene-tolerant [PDF]

open access: yesProceedings of the National Academy of Sciences, 2011
Juvenile hormone (JH) is a sesquiterpenoid of vital importance for insect development, yet the molecular basis of JH signaling remains obscure, mainly because a bona fide JH receptor has not been identified. Mounting evidence points to the basic helix–loop–helix (bHLH)/Per-Arnt-Sim (PAS) domain protein Methoprene-tolerant (Met) as the best JH receptor ...
Charles, Jean-Philippe   +5 more
openaire   +7 more sources

Methoprene and Temperature Stimulation of Emergence and Longevity in Adults of Osmia Rufa L. (Megachilidae; Apoidea) During Wintering Period

open access: yesJournal of Apicultural Science, 2017
In this study methoprene, a juvenile hormone analogues, was tested as a factor that stimulates the end of diapause, bee activation and emergence. In addition, the survival of bees was checked when combined with an application of methoprene.
Giejdasz Karol, Wasielewski Oskar
doaj   +2 more sources

Juvenile hormone (JH) esterase of the mosquito Culex quinquefasciatus is not a target of the JH analog insecticide methoprene. [PDF]

open access: yesPLoS ONE, 2011
Juvenile hormones (JHs) are essential sesquiterpenes that control insect development and reproduction. JH analog (JHA) insecticides such as methoprene are compounds that mimic the structure and/or biological activity of JH.
Shizuo G Kamita   +4 more
doaj   +1 more source

Transcriptomic analysis of s-methoprene resistance in the lesser grain borer, Rhyzopertha dominica, and evaluation of piperonyl butoxide as a resistance breaker

open access: yesBMC Genomics, 2021
Background The lesser grain borer, Rhyzopertha dominica is a serious pest of stored grains. Fumigation and contact insecticides play a major role in managing this pest globally.
Maria K. Sakka   +8 more
doaj   +1 more source

Assessment of fall-back MRLs for revoked CXLs previously implemented in the EU legislation. [PDF]

open access: yesEFSA J
Abstract In the 56th meeting of the Codex Committee on Pesticide Residues (CCPR meeting) held in September 2025 and the subsequent 48th meeting of the Codex Alimentarius Commission (CAC) (November 2025), 352 Codex MRLs (CXLs) for 30 active substances (a.s.) were revoked.
European Food Safety Authority (EFSA).
europepmc   +2 more sources

Home - About - Disclaimer - Privacy