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EFFECTS OF FENITROTHION INSECTICIDE ON INHABITANTS OF LEAVES OF THE PITCHER PLANT, SARRACENIA PURPUREA L.

Published online by Cambridge University Press:  31 May 2012

W.L. Fairchild ,
D.C. Eidt  and
C.A.A. Weaver
W.L. Fairchild
Affiliation:
Canadian Forestry Service – Maritimes, PO Box 4000, Fredericton, New Brunswick, Canada E3B 5P7
D.C. Eidt
Affiliation:
Canadian Forestry Service – Maritimes, PO Box 4000, Fredericton, New Brunswick, Canada E3B 5P7
C.A.A. Weaver
Affiliation:
Canadian Forestry Service – Maritimes, PO Box 4000, Fredericton, New Brunswick, Canada E3B 5P7
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Abstract

By injecting fenitrothion into fluid in leaves of pitcher plants, Sarracenia purpurea L., it was determined that the mosquito, Wyeomyia smithii (Coquillett), and the midge, Metriocnemus knabi (Coquillett), are under some risk from fenitrothion forest sprays at the rate of 210 g AI/ha. Wyeomyia smithii is slightly more susceptible than is M. knabi. Other leaf inhabitants, mites and rotifers, were not affected by initial concentrations of fenitrothion in the fluid (up to 9.6 μg/L) that did affect the mosquito and the midge.

Résumé

L’injection de fénitrothion dans le fluide de feuilles de la sarracénie pourpre, Sarracenia purpurea L., a indiqué que le moustique Wyeomyia smithii (Coquillett) et le moucheron Metriocnemus knabi (Coquillett) sont vulnérables aux épandages de fénitrothion en forêt à la dose de 210 g d’ingrédient actif/ha. Wyeomyia smithii s’est révélé un peu plus sensible que M. knabi. D’autres espèces présentes, des acariens et des rotifères, n’étaient pas sensibles aux concentrations initiales de fénitrothion, jusqu’à 9,6 μg/L dans le fluide, qui avait un effet sur le moustique et le moucheron.

Type
Articles
Information
The Canadian Entomologist , Volume 119 , Issue 7-8 , August 1987 , pp. 647 - 652
Copyright
Copyright © Entomological Society of Canada 1987

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