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OLFACTORY REPELLENCY OF HERBICIDES TO FORAGING HONEY BEES (HYMENOPTERA: APIDAE)1

Published online by Cambridge University Press:  31 May 2012

R.H. Elliott ,
D. Cmiralova  and
W.G. Wellington
R.H. Elliott
Affiliation:
Department of Plant Science, University of British Columbia, Vancouver V6T 1W5
D. Cmiralova
Affiliation:
Department of Plant Science, University of British Columbia, Vancouver V6T 1W5
W.G. Wellington
Affiliation:
Department of Plant Science, University of British Columbia, Vancouver V6T 1W5
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Abstract

Foraging honey bees were offered various sucrose–herbicide solutions. Despite the visual attractiveness of the feeding dishes to foragers, six of seven herbicides significantly reduced the incidence of feeding and were judged to be olfactory and gustatory repellents. The most repellent herbicide was 2,4,5-T, which totally inhibited feeding at concentrations as tow as 1000 ppm. The next most repellent was 2,4-DB, followed by linuron, picloram, 2,4-D, and monuron. Paraquat was the only herbicide that did not exhibit marked repellency at concentrations up to 4000 ppm.

The implications of these findings are discussed in terms of the impact of herbicide applications on honey bee foraging behaviour, brood development, pollination, and honey production.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 10 , October 1979 , pp. 1131 - 1135
Copyright
Copyright © Entomological Society of Canada 1979

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