Journal ArticleDOI
A method of computing the effectiveness of an insecticide
TLDR
In order to make experimental studies comparable and statistically meaningful, the article recommends the following formula: per cent control = 100(X - Y)/X, which eliminates errors due to deaths in the control sample which were not due to the insecticide.Abstract:
There are several statistical methods used in biology (entomology) for computing the effectiveness of an insecticide, based on relating the number of dead insects in the treated plat to the number of live ones in the untreated plat. In order to make experimental studies comparable and statistically meaningful, the article recommends the following formula: per cent control = 100(X - Y)/X, where X = % living in the untreated check sample and Y = % living in the treated sample. Calculation using this method eliminates errors due to deaths in the control sample which were not due to the insecticide. An example based on treatments of San Jose scale includes computation of probable errors for X and Y, and the significance of the difference between the two counts. Common biometric convention holds that when the difference between the results of two experiments is greater than three times its probable error, the results are significant and due to the treatment applied.read more
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A multi-step bioassay to assess the effect of the deltamethrin on the parasitic wasp Aphidius ervi
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Phosphine resistance in the rust red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae): Inheritance, gene interactions and fitness costs
Rajeswaran Jagadeesan,Patrick J. Collins,Patrick J. Collins,Gregory J. Daglish,Gregory J. Daglish,Paul R. Ebert,David I. Schlipalius,David I. Schlipalius +7 more
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Acute larvicidal toxicity of five essential oils (Pinus nigra, Hyssopus officinalis, Satureja montana, Aloysia citrodora and Pelargonium graveolens) against the filariasis vector Culex quinquefasciatus: Synergistic and antagonistic effects.
Giovanni Benelli,Roman Pavela,Angelo Canale,Kevin Cianfaglione,Giampiero Ciaschetti,Fabio Conti,Marcello Nicoletti,Sengottayan Senthil-Nathan,Heinz Mehlhorn,Filippo Maggi +9 more
TL;DR: The results add useful knowledge to allow the employ of synergistic essential oil blends as effective, cheap and eco-friendly mosquito larvicides.
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Larvicidal activity of silver nanoparticles synthesized using Pergularia daemia plant latex against Aedes aegypti and Anopheles stephensi and nontarget fish Poecillia reticulata
Chandrashekhar D. Patil,Hemant P. Borase,Satish V. Patil,Rahul B. Salunkhe,Bipinchandra K. Salunke +4 more
TL;DR: The AgNPs did not exhibit any noticeable effects on Poecillia reticulata after either 24 or 48 h of exposure at their LC50 and LC90 values against fourth-instar larvae of A. aegypti and A. stephensi and were clearly negatively charged (zeta potential −27.4 mV).
Journal ArticleDOI
Insecticide resistance status in Anopheles gambiae in southern Benin
Anges Yadouleton,Gil Germain Padonou,Alex Asidi,Nicolas Moiroux,Sahabi Bio-Banganna,Vincent Corbel,Raphael N’Guessan,Dina Gbénou,Imorou Yacoubou,Kinde Gazard,Martin Akogbeto +10 more
TL;DR: A widespread resistance to permethrin in An.