Results 61 to 70 of about 305,304 (361)

Multicentre studies of insecticide-treated durable wall lining in Africa and South-East Asia: entomological efficacy and household acceptability during one year of field use. [PDF]

open access: yes, 2012
BACKGROUND: Indoor residual spraying (IRS) is a primary method of malaria vector control, but its potential impact is constrained by several inherent limitations: spraying must be repeated when insecticide residues decay, householders can tire of the ...
Mark Rowland   +50 more
core   +1 more source

Selection and Validation of Reference Genes for Gene Expression Analysis in Tuta absoluta Meyrick (Lepidoptera: Gelechiidae)

open access: yesInsects, 2021
The tomato leaf miner, Tuta absoluta is a destructive pest of tomato. The leaf-mining activities of its larvae can cause significant yield losses. Real-time quantitative polymerase chain reaction (RT-qPCR) is commonly used to measure gene expression, and
Xin Yan   +4 more
doaj   +1 more source

Preventing childhood malaria in Africa by protecting adults from mosquitoes with insecticide-treated nets [PDF]

open access: yes, 2007
Malaria prevention in Africa merits particular attention as the world strives toward a better life for the poorest. Insecticide-treated nets (ITNs) represent a practical means to prevent malaria in Africa, so scaling up coverage to at least 80% of young ...
Killeen, G.F.   +21 more
core   +1 more source

Assessment of the insecticidal activity of afoxolaner against Aedes aegypti in dogs treated with NexGard®

open access: yesParasite, 2017
Twelve healthy dogs were studied in this parallel group, blinded, randomised, and negative controlled efficacy study. On Day -1, the 12 dogs included were ranked within sex in descending order of individual pre-treatment (Day -5) fed mosquito counts and ...
Liebenberg Julian   +5 more
doaj   +1 more source

Effects of croton urucurana extracts and crude resin on Anagasta kuehniella (Lepidoptera: Pyralidae)

open access: yesBrazilian Archives of Biology and Technology, 2009
Hundreds of plant species have been studied in order to find out the active ingredient responsible for their insecticidal activity against the pests of economic importance.
Luciana Barboza Silva   +3 more
doaj   +1 more source

Peer review of the pesticide risk assessment of the active substance Spodoptera exigua multicapsid nucleopolyhedrovirus (SeMNPV)

open access: yesEFSA Journal, 2021
The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authority of the rapporteur Member State, Spain, for the pesticide active substance Spodoptera exigua ...
European Food Safety Authority (EFSA)   +41 more
doaj   +1 more source

Insect cuticle: a critical determinant of insecticide resistance.

open access: yesCurrent Opinion in Insect Science, 2018
Intense use of insecticides has resulted in the selection of extreme levels of resistance in insect populations. Therefore understanding the molecular basis of insecticide resistance mechanisms becomes critical.
Vasileia Balabanidou   +2 more
semanticscholar   +1 more source

A Disaggregation Strategy for Nanopesticide Fabrication: Investigating the Impact of Nanosizing on Pesticide Biointeractions

open access: yesAdvanced Science, EarlyView.
To explore the impact of nanosizing on pesticide biointeractions, a 7‐nm (average) emamectin benzoate nanopesticide without nanocarriers or surfactants is fabricated via HOAc‐mediated disaggregation. Nanosizing enhances bioactivity against Megalurothrips usitatus and Meloidogyne enterolobii and improves plant penetration.
Jiaqi Wei   +11 more
wiley   +1 more source

The activity of the pyrrole insecticide chlorfenapyr in mosquito bioassay: towards a more rational testing and screening of non-neurotoxic insecticides for malaria vector control. [PDF]

open access: yes, 2015
BACKGROUND: The rapid selection of pyrethroid resistance throughout sub-Saharan Africa is a serious threat to malaria vector control. Chlorfenapyr is a pyrrole insecticide which shows no cross resistance to insecticide classes normally used for vector ...
Franklin W Mosha   +15 more
core   +1 more source

Calcium‐Mechanochemistry Enabled Ketone Synthesis From Organic Iodides and Carboxylic Acids

open access: yesAdvanced Science, EarlyView.
Mechanochemically generated organocalcium species display unusual chemoselectivity toward carboxylates, enabling direct ketone synthesis without overaddition. Ball milling activates commercial calcium metal under ambient, solvent‐minimized conditions, providing a broad substrate scope, high functional‐group tolerance, and a practical one‐step ...
Mengyao Pei   +9 more
wiley   +1 more source

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