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EFFECTS OF SILICA ON THE SURVIVAL OF COLEOMEGILLA MACULATA LENGI (COLEOPTERA: COCCENELLIDAE) AND LEPTMOTARSA DECEMLINEATA (COLEOPTERA: CHRYSOMELIDAE)

Published online by Cambridge University Press:  31 May 2012

B. C. Smith
B. C. Smith
Affiliation:
Research Institute, Canada Department of Agriculture, Belleville, Ontario
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Abstract

Larvae of Coleomegilla maculata lengi Timberlake and Leptinotarsa decemlineata (Say) were unable to moult and died after ingesting colloidal silica with their food. Field trials showed that dry silica can be used to reduce populations of L. decemlineata on potato.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 5 , May 1969 , pp. 460 - 462
Copyright
Copyright © Entomological Society of Canada 1969

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