What question did this study set out to answer?

To assess how variations in liquid volume and container diameter in standard laboratory testing affect the mortality of different mosquito larval species exposed to various larvicides.

October 1, 1959Journal of Economic Entomology

Effect of Varying Conditions in a Laboratory Testing Technique on the Mortality of Mosquito Larvae

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Authors

CSClaude H. SchmidtCentre National de la Recherche Scientifique DWD. E. WeidhaasCenter for Medical, Agricultural and Veterinary Entomology

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Implication

Laboratory experiment demonstrates varying liquid volume and container diameter alter larvicide toxicity in mosquito larvae, highlighting the need for standardized bioassay conditions.

Key Points

To assess how variations in liquid volume and container diameter in standard laboratory testing affect the mortality of different mosquito larval species exposed to various larvicides.
Tested acetone-water suspensions or solutions of dieldrin, lindane, malathion, DDT, and parathion across volumes ranging from 100 to 1,000 ml.
Evaluated the effect of increasing container diameter from 3 to 6 inches at fixed volume and concentration on Anopheles quadrimaculatus, Aedes taeniorhynchus, and Aedes aegypti larvae.
Increasing suspension volume from 100 to 1,000 ml raised larval mortality for dieldrin, lindane, malathion, and DDT—with the greatest effect in DDT on A. quadrimaculatus and A. taeniorhynchus—whereas parathion showed no volume-dependent change.
Expanding container diameter from 3 to 6 inches decreased mortality in A. quadrimaculatus exposed to dieldrin, lindane, and DDT, but caused no difference with malathion or parathion, nor in the other two species.

Cite This Study

Schmidt et al. (1959) studied this question.

synapsesocial.com/papers/6a9ff5b0b95bc43c2fd55c78 https://doi.org/10.1093/jee/52.5.977

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Implication

Laboratory experiment demonstrates varying liquid volume and container diameter alter larvicide toxicity in mosquito larvae, highlighting the need for standardized bioassay conditions.

Effect of Varying Conditions in a Laboratory Testing Technique on the Mortality of Mosquito Larvae

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Implication

Key Points

Cite This Study

Effect of Varying Conditions in a Laboratory Testing Technique on the Mortality of Mosquito Larvae

Discussion

Member takes

Implication

Key Points

Cite This Study

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