TWO SPECIES OF ENTOMOPHTHORA PATHOGENIC TO THE EASTERN HEMLOCK LOOPER (LEPIDOPTERA: GEOMETRIDAE) IN NEWFOUNDLAND

Abstract Two fungi, Entomophthora sphaerosperma and E . egressa , were collected and identified from larvae of the eastern hemlock looper, Lambdina f . fiscellaria (Guen.), in Newfoundland. These two fungi appear to play the most important role in the decline of looper infestations. Field trials ind...

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Bibliographic Details
Published in:The Canadian Entomologist
Main Authors: Otvos, I. S., MacLeod, D. M., Tyrrell, D.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1973
Subjects:
Insect Science
Molecular Biology
Physiology
Ecology, Evolution, Behavior and Systematics
Structural Biology
Newfoundland
Online Access:http://dx.doi.org/10.4039/ent1051435-11
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00022847
Description
Summary:Abstract Two fungi, Entomophthora sphaerosperma and E . egressa , were collected and identified from larvae of the eastern hemlock looper, Lambdina f . fiscellaria (Guen.), in Newfoundland. These two fungi appear to play the most important role in the decline of looper infestations. Field trials indicate that the disease can be transmitted from laboratory-reared larvae artificially infected with the protoplast stage of E . egressa , to uninfected larvae. This suggests that infection may be established artificially within a population of the looper prior to the ’natural’ occurrence of the epizootic.

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