Browsing by Author "Sanjeet Kumar Singh"

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Occurrence of insect-pests and natural enemies' complex on cabbage in Varanasi (U.P.), India
(2013) Dharmendra Kumar; S.V.S. Raju; Anoop Kumar; Sanjeet Kumar Singh; C. Nagrajan
Study on the occurrence of insect-pests and natural enemies' complex on cabbage was conducted during Rabi 2006 and Rabi 2007 in Varanasi (Uttar Pradesh), India. During the intensive survey of cabbage (Brassica oleracea var. capitata) fields, 28 different insect-pests' species of 8 different orders were recorded. Out of which maximum (9) from order Lepidoptera followed by Coleoptera (7). However, in orders Diptera, Thysanoptera and Isoptera only one species were recorded in each order. Population of Diamond back moth, Plutella xylostella (L.) and cabbage head borer, Hellula undalis Fab. were higher compare to other and attained the status of major pest. Among natural enemies, predators rove beetle, Paederus sp., lady bird beetle, Coccinella septumpunctata L. and parasitoids Diaeretiella rapae (McIntosh) and Cotesia plutellae (Kurdjumov) were recorded.