POLLEN REMOVAL IN CYPRIPEDIUM ACAULE (ORCHIDACEAE) IN RELATION TO AERIAL FENITROTHION SPRAYING IN NEW BRUNSWICK

1 August 1980

journal article
research article
Published by Cambridge University Press (CUP) in The Canadian Entomologist

Vol. 112 (8) , 765-769
https://doi.org/10.4039/ent112765-8

Abstract

Measures of pollen removal in the orchid Cypripedium acaule Ait. provided a retrospective method for estimating the activity of bumble bee pollinators in New Brunswick spruce-fir forests. Significantly lowered activity was observed in fenitrothion-sprayed forest as compared with unsprayed control areas. The difference is probably attributable to direct mortality of bees in sprayed forest.

Keywords

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The Canadian Entomologist, 1980
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