Journal of Apicultural Science

Efficacy of some chemicals as repellents against two honey bee species, Apis mellifera L. and Apis florea F. in semi-field trials

Journal of Apicultural Science. Volume 53, Issue 1, Pages 53-66, ISSN (Print) 1643-4439
The objective of this research was to devise methods to provide functional protection to the honeybees in pesticide treated fields. Twenty five chemical compounds belonging to these five different groups - amine, ester, phenol, aldehyde and ketone, at six different concentration levels ranging from 0.05 to 0.5% were tested for their repellency. They were tested for their repellency against the two honey bee species, Apis mellifera and Apis florea under semi-field conditions. Out of these, fifteen compounds belonging to three groups i.e. phenol, aldehyde and ketone exhibited the desired level of $ 80% repellency. Ketones showed desired repellency at even low concentrations followed by aldehydes and phenols. Among these fifteen compounds, p-ethoxyacetophenone, m-bromoacetophenone and 3, 4, 5-trimethoxyacetophenone at a 0.2% concentration; phenylacetaldehyde at a 0.3% concentration and; 4-nitrobenzaldehyde, p-bromophenol and p-cresol at a 0.4% concentration exhibited the desired level of 80% repellency.
Honeybees, Apis florea, Apis mellifera, pollination, pesticides, repellents
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