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Title   Biological control potential of Coccinella septempunctata Linnaeus (Coleoptera: Coccinellidae) on major homopteran pests of rapeseed.

Author(s)   Bilashini, Y.; Singh, T. K.; Singh, R. K. R.

Author Affiliation   Aphid Research Laboratory, Department of Life Sciences, Manipur University, Canchipur, Imphal - 795 003, Manipur, India.

Journal article; Conference paper   Journal of Biological Control 2007 Vol. 21 No. Special pp. 157-162

ISSN   0971-930X

Publisher information   Society for Biocontrol Advancement, Bangalore, India

Language of Text   English

Record Number   20083078427


The role of the predator, Coccinella septempunctata in regulating the field density of the Brassica aphids, Lipaphis erysimi (Kaltenbach), Myzus persicae (Sulzer) and Brevicoryne brassicae (Linnaeus) was studied for two cropping seasons (2003-2005) on rapeseed, Brassica juncea cv. M27. The numerical density of the predator was observed to increase in response to increase in density of aphid prey in the field. The correlation analysis showed significant positive correlationship between the predator and two aphid species viz., L. erysimi and M. persicae, but non-significant positive relationship was observed with B. brassicae. In the laboratory, prey preference of C. septempunctata was in the order L. erysimi > M. persicae > B. brassicae.

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