FLORA AND FAUNA ISSN 2456-9364(Online) 0971-6920(Print)
         
2017 Vol.23 No.2 PP 445-452
SEASONAL INCIDENCE OF PLUME MOTH, EXELASTIS ATOMOSA (LEPIDOPTERA: PTEROPHORIDAE) ON LONG DURATION PIGEONPEA, CAJANUS CAJAN
RAHUL KUMAR RAWAT, RAM KEVAL*, SABUJ GANGULY AND SNEHEL CHAKRAVARTY .
Department of Entomology and Agricultural Zoology,
Institute of Agricultural Sciences,
Banaras Hindu University, VARANASI-221 005 (U.P.) INDIA
*Corresponding Author : Email : sabujganguly555@gmail.com
ABSTRACT
The present research was aimed to study the incidence pattern of plume moth, Exelastis atomosa during Kharif 2015-16 and 2016-17 for long duration on pigeonpea cv. Bahar. The results revealed that the incidence of pod bug started from the 5th standard week during 2015-16 and from 6th standard week during 2016-17 and it remained active up to 15thstandard week of both the years. The E. atomosa population attained its peak level during 11th standard week of both the years i.e., 1.73 larvae/ plant and 1.6 larvae/ plant respectively. Correlation studies indicated that population of E. atomosa exhibited a significant positive correlation with maximum and minimum temperatures and wind velocity whereas a significant negative correlation was established with average relative humidity. Other abiotic factors had no significant effect on this insect pest population. The regression equation revealed that variations of different weather variables caused approximately 85.3 and 75.9 per cent variations in E. atomosa population during both years, respectively.

Key words : Exelastis atomosa, Incidence, Pigeonpea, Plume moth.
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