Studies on the Biology of Moong Weevil Cyrtozemia Cognata Marshall (Under Arid Conditions)

Kushwaha, K S and Pal, S K (1978) Studies on the Biology of Moong Weevil Cyrtozemia Cognata Marshall (Under Arid Conditions). Indian Journal of Plant Protection, 6 (2). pp. 84-85. ISSN 0253-4355

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Abstract

Field studies were carried out in India during the kharif (hot) season of 1975 on the biology of Cyrtozemia cognata Mshl., one of the most serious pests of moong (Vigna radiata). The life-cycle of the pest was completed in 20-25 days, with 3-4 annual generations from July to October. Eggs were laid singly or in batches of 2-36 on the upper tip of the leaf, and the incubation period lasted 2-3 days. The larval stage lasted 10-15 days with 4 instars. On completion of development, larvae pupated in the soil at a depth of 5-6 cm. The pupal period lasted 4-5 days.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Others > Agriculture-Farming, Production, Technology, Economics
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	15 Dec 2012 12:04
Last Modified:	15 Dec 2012 12:04
URI:	http://oar.icrisat.org/id/eprint/6326
Official URL:	http://www.indianjournals.com/ijor.aspx?target=ijo...
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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