2010•Indian Journal of EntomologyRequires access

Evaluation of some bioagents against mustard aphid (Lipaphis erysimi Kaltenbach) (Homoptera: Aphididae) under field conditions

Y. P. S Ingh, H. P. Meghwal

Abstract

Bioagents viz., Coccinella septempunctata (Linnaeus), Chrysoperla carnea (Stephens) and Verticillium lecanii (Zimmerman) were evaluated against mustard aphid (Lipaphis erysimi Kaltenbach) on Brassica rapa var. brown sarson (Variety BSH-1) under field conditions at National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur during 2005–06 and 2006–07. C. septempunctata @ 5, 000 beetles/ha was found most effective reducing 86.60% aphid population after 10 days of release followed by V. lecanii @ 108 CS/ml (74.23%) and C. septempunctata @ 3, 000 beetles/ha (68.37%). Maximum yield was recorded in C. septempunctata @ 5, 000 beetles/ha followed by V. lecanii @ 108 CS/ml and C. septempunctata @ 3, 000 beetles/ha.

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Key concepts: Coccinella septempunctata, Lipaphis erysimi, Biology, Chrysoperla carnea, Aphid, Aphididae, Homoptera, Population