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FUMIGATION OF APPLES UNDER PLASTIC TARPAULINS WITH ETHYLENE DIBROMIDE TO CONTROL DIAPAUSING EUROPEAN RED MITE (ACARINA: TETRANYCHIDAE) EGGS1

Published online by Cambridge University Press:  31 May 2012

K. H. Sanford ,
D. K. R. Stewart  and
P. A. Poapst
K. H. Sanford
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia
D. K. R. Stewart
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia
P. A. Poapst
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia
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Abstract

Overwintering eggs of the European red mite, Panonychus ulmi (Koch), were killed on McIntosh and Red Delicious apples by 4½-h fumigation treatments with ethylene dibromide. Constant concentrations of 8 mg EDB/1. at 14 °C achieved 100% mortality, and absorption of the fumigant by the apples, the bins, and the chamber was determined so that the amount of fumigant for various size commercial loads could be calculated. Treatments increased scald on McIntosh but reduced it on Red Delicious. Taste and other qualities of the fruit were not affected.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 2 , February 1976 , pp. 217 - 223
Copyright
Copyright © Entomological Society of Canada 1976

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References

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