Eco-friendly Management of Tomato Fruit Borer, Helicoverpa armigera (Hub.) in Hyper Arid Region of Rajasthan
Loading...
Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Entomology COLLEGE OF AGRICULTURE SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER 334006
Abstract
The present investigations on “Eco-friendly Management of Tomato
Fruit Borer, Helicoverpa armigera (Hub.) in Hyper Arid Region of
Rajasthan” was carried out at farm of Agricultural Research station, Swami
Keshwanand Rajasthan Agricultural University, Bikaner during rabi, 2013-14.
The incidence of fruit borer started in the last week of December on tomato. The
population lowered down upto 3rd SMW and thereafter, population increased but
fluctuating trend was recorded upto 9th SMW. The larval population increased
and reached to peak in 12th SMW. Thereafter, it’s population decreased
gradually and negligible population was recorded upto second week of April. A
significant positive correlation was observed between pest population and
maximum and minimum temperature, whereas, it was non-significant positive
with average relative humidity. A non-significant negative correlation was
computed between pest population and total rainfall. The bio-efficacy of nine
insecticides evaluated against fruit borer in tomato revealed that indoxacarb 14.5
SC (0.01%) was found most effective against fruit borer followed by novaluron
10 EC (0.01%) and acephate 75 SP (0.037%). B. thuringiensis 8L (0.012%)
proved least effect followed by HaNPV (250 LE/ha) and quinalphos 25 EC
(0.02%).The treatments of chlorantraniliprole 18.5 SC (0.02%), abamectin 5 SG
(0.01%) and spinosad 2.5 SC (0.01%) ranked in middle order of their efficacy.
Description
Keywords
null