OCCURRENCE OF INSECT PESTS AND THEIR MANAGEMENT ON SUMMER MUNG BEAN (Vigna radiata) (L.)
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Date
2019
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Birsa Agricultural University, Ranchi, Jharkhand-6
Abstract
The scientific name of mungbean is Vigna radiata (L.) Wilczeki. It is an important
short duration pulse crop that is under cultivation since prehistoric time in India. Among
the various factor for, its low production, insect – pests play an important limiting factor,
particularly thrips, whitefly and pod borer complex are supposed to be of major insect
pests. The research programme entitled “Occurrence of insect pests and their
management on summer mungbean (Vigna radiata) (L.)” was carried out during
summer, 2016 at BAU, Ranchi.
The correlation co-efficient analysis indicated that maximum temperature and
relative humidity influence the population of thrips positively. The maximum
temperature and maximum relative humidity positively impact on whitefly population.
The jassid population exhibited a significant correlation with maximum temperature and
relative humidity The analysis of correlation co-efficient between population of pod
borer and weather parameters revealed that among all the weather parameters, only
relative humidity 2 P.M. showed significant positive correlation with pod borer. The
incidence of defoliator has significant positive correlation with maximum temperature
and negative correlation with maximum relative humidity.
Out of the 42 genotypes screened, (Pant M2, NDM 15-1, NBPGR 150 and Pusa
Vishal), (Pusa 1631, COGG 11-02, Pant M 5, Pusa 1601, LGG 450), (Pusa Vishal, Pant
M 5, NBPGR 150 and NDM 15-1) and (Pant M 2, NDM 15-1, LGG 450, Pusa 1632,
Pusa 1602 and CO 8) were found promising against thrips, whitefly, defoliator and pod
borer complex respectively.
The study on evaluation of insecticides revealed that seed treatment with
Imidacloprid 17.8 SL @5ml/kg seed followed by foliar application of Indoxacarb 14.5
SL @ 65 g a.i./ha. or Seed treatment with Imidacloprid 17.8 SL @5ml/kg seed followed
by foliar application of Thiomethoxam 25% WG @ 0.4 g/l able to cause significant
suppression of major insect pests which resulted in low pests infestation of green gram
with higher grain yield and higher net returns.
Description
OCCURRENCE OF INSECT PESTS AND THEIR MANAGEMENT ON SUMMER MUNG BEAN (Vigna radiata) (L.)
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