Journal of the Kansas Entomological Society
At Ludhiana (Punjab) India, 97 species of bees were collected from crops, garden flowers and wild flowers. The relationship between the climate, flowering seasons of plants and periods of activity of associated bees is described. Bees belonging to primarily holarctic genera appeared on the winter annuals and cold-weather crops; during the warm season a greater variety of bees was on the tropical crops. Various wild bees were more numerous than Apis spp. on sunn hemp, gram, sarson, taramira, pomegranate and eggplant.
Batra, Suzanne W. T., "Crop Pollination and the Flower Relationships of the Wild Bees of Ludhiana, India" (1967). Ba. Paper 90.
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