Study on seasonal activity of predatory wasps attacking honeybee (Apis cerana) colonies
Abstract
A study was carried out at southern belt of Kaski District during Aug 2003 to July 2004 to study on seasonal activity of predatory wasps. Vespa velntina, V. bicolor, V. tropica and V. basalis were observed preying on Apis cerana in apiaries. Among them Vespa velntina and V. bicolor were the most abundant and common enemies of bees throughout the year. Peak predatory activity occurred to bees ranged from 1.25 to 12.25 per day during different months of the year, which must often coincide with the floral dearth period. Morning and noontime were peak time of an attack than the late day, which most often coincided with the activity of bees.
References
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