Preying capacity of different established predators of the aphid Lipaphis erysimi (Kalt.) infesting rapeseed-mustard crop in laboratory conditions
2013
Singh, K., Udai Pratap Autonomous Coll., Varanasi (India). Dept. of Agricultural Entomology | Singh, N.N., Banaras Hindu Univ., Varanasi (India). Dept. of Entomology and Agricultural Zoology
Experiments on the preying capability of different stages of larvae of coccinellid and syrphid flies on the mustard aphid, Lipaphis erysimi, were conducted in a laboratory during the winter cropping seasons of 2009-2010 and 2010-2011. Our results revealed that grubs of the Coccinella septempunctata preyed the highest number of mustard aphids (61.42 aphids/day on average) followed by Syrphus confrater (34.81 aphids/day), Syrphus balteatus (32.26 aphids/day) and Ischiodon scutellaris (27.76 aphids/day) during their larval span. The last juvenile stage of the predators was the mightiest devourer of L. erysimi. These predators could be used effectively for the management of L. erysimi on rapeseed-mustard crop.
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