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A Strain of Bacillus cereus Fr. and Fr. Pathogenic for the Larch Sawfly, Pristiphora erichsonii (Htg.)1

Published online by Cambridge University Press:  31 May 2012

A. M. Heimpel
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Abstract

A strain of Bacillus cereus (Pr-1017) was isolated from dead and dying larvae of the larch sawfly. Laboratory and field feeding tests resulted in mortalities as high as 60 per cent and 38 per cent, respectively.

A positive correlation between the incidence of mortality and the mean daily temperatures was obtained in the field experiments.

Type
Articles
Information
The Canadian Entomologist , Volume 86 , Issue 2 , February 1954 , pp. 73 - 77
Copyright
Copyright © Entomological Society of Canada 1954

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