Influence of Rough Handling on Osmia lignaria (Hymenoptera: Megachilidae) Nest Establishment in Commercial Orchards

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Osmia lignaria Say (Hymenoptera: Megachilidae) can be used to pollinate fruit trees. Populations are sometimes difficult to sustain because some female bees fail to establish at provided nesting sites. We address the hypothesis that rough handling of overwintered O. lignaria results in decreased establishment. We tested this by shaking (200 rpm for 2 min) overwintering bees as a proxy for rough handling. Bees were then released in an orchard, and nest establishment of shaken and unshaken bees was recorded. There was no significant difference in the proportion of shaken and unshaken females that nested, indicating that rough handling of overwintering bees does not discourage nest establishment.

Keywords: Osmia lignaria; bee dispersal; bee retention; solitary bees

Document Type: Research Article


Publication date: June 1, 2011

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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