POPULATION DENSITY OF Spodoptera litura FAB. (LEPIDOPTERA: NOCTUIDAE) ON SIX VARIETIES OF CABBAGE UNDER NEW ALLUVIAL ZONE OF WEST BENGAL
Publication Date : 29/02/2016
The studies of population dynamics of cabbage head borer on six different varieties of cabbage namely (Pluto, NS-183, Green Express, Pan-1181, Mohar F1 and Rare Ball) were carried out at the Central Research Farm, Bidhan Chandra Krishi Viswavidyalaya, Gayeshpur, Nadia, West Bengal. Observations on the incidence and population dynamics of S. litura (Fab.) for two years (2008-09 and 2009-10) on six cabbage varieties revealed that the pest remained active on the crops for a long period (1st SW to 17th SW) and maximum population of S. litura (Fab.) were found during 10th to 13th SW. Among the six varieties, Pluto and Mohar F1 were less susceptible while Green Express and Rare Ball were more susceptible to S. litura.
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