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THE PERSISTENCE OF A NUCLEAR POLYHEDROSIS VIRUS IN THE HABITAT OF THE HOST INSECT, TRICHOPLUSIA NI: I. POLYHEDRA DEPOSITED ON FOLIAGE1

Published online by Cambridge University Press:  31 May 2012

R. P. Jaques
R. P. Jaques
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
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Abstract

Field, glasshouse, and laboratory tests showed that deposits of polyhedra of the nuclear polyhedrosis virus of the cabbage looper, Trichoplusia ni (Hübner), on foliage are practically non-infective after a 1-month exposure to weathering. Inactivation by sunlight appeared to be more important than removal by washing by rain in causing this loss of activity. The virus was readily inactivated by exposure to ultraviolet light. Virus exposed in aqueous suspensions of polyhedra or in wetted deposits was inactivated by shorter exposures than was virus in dry deposits of polyhedra.

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 8 , August 1967 , pp. 785 - 794
Copyright
Copyright © Entomological Society of Canada 1967

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