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Mosquito Larval Consumption of Toxic Arborescent Leaf-litter, and Its Biocontrol Potential by J. P. David; M. Tilquin; D. Rey; P. Ravanel; J. C. Meyran is a Agricultural and Biological Sciences article available to read on EtoBox.

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**Abstract.** Previously we described the mosquito larvicidal properties of decomposed leaf‐litter from deciduous trees, especially the alder __Alnus glutinosa__ (L) Gaertn., due to toxic polyphenols and other secondary compounds. To further examine the biocontrol potential of toxic leaf‐litter for mosquito control, feeding rates of third‐instar mosquito larvae were assessed for examples of three genera: __Anopheles stephensi__ Liston, __Aedes aegypti__ (L) and __Culex pipiens__ L. (Diptera: Culicidae). When immersed in a suspension of non‐toxic leaf‐litter particles (∼0.4 mm), pre‐starved larvae of all three species ingested sufficient material in 30 min to fill the anterior gut lumen (thorax plus two to three abdominal segments). Gut filling peaked after 1–2 h ingestion time, filling the intestine up to six to seven abdominal segments for __Ae. aegypti__, but maxima of five abdominal segments for __Cx. pipiens__ and __An. stephensi__. Using three methods to quantify consumption of three materials by third‐instar larvae of __Ae. aegypti__, the average amount of leaf‐litter (non‐toxic 0.4 mm particles) ingested during 3 h was determined as ∼20 μg/larva (by dry weight and by lignin

Who reads Mosquito Larval Consumption of Toxic Arborescent Leaf-litter, and Its Biocontrol Potential?

Author

J. P. David; M. Tilquin; D. Rey; P. Ravanel; J. C. Meyran

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0269-283X)

Published

2003

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)