SEASONAL INCIDENCE OF INSECT PESTS ON MUNG BEAN, VIGNA RADIATA L. AND THEIR CORRELATION WITH WEATHER PARAMETERS

GUNJAN SHARMA, TARUN VERMA*, ANIL JAKHAR, RAJESH YADAV AND RAKESH SANGWAN
Department of Entomology; Department of Genetics and Plant Breeding; Department of Plant Pathology, CCS
Haryana Agricultural University, Hisar-125 004 (Haryana)
*(e-mail: vermatarun27@gmail.com)
(Received: 06 March 2025; 28 March: 2025)

SUMMARY

In the present study, the seasonal incidence of major insect pests on mung bean and their
correlation with weather parameters was studied on two varieties (MH 421 and MH 1142) at CCS
Haryana Agricultural University, Hisar, Haryana during kharif, 2022. The results revealed that insect-
pests namely, Bemisia tabaci, Empoasca kerri, Nezara viridula, Clavigrella gibbosa, Riptortus
pedestris, Phyllotreta spp., Trichoplusia ni and Maruca vitrata, and natural enemies including
Coccinella septumpuctata and spiders were observed in mung bean crop wherein whitefly, B.
tabaci was found to be the major pest infesting crop from 31st to 37th SMW (1.20 to 16.80 adults/3
trifoliate leaves) with its peak population in 34th SMW. Population of B. tabaci, T. ni, Phyllotreta
spp. and coccinellid exhibited a significant and positive correlation with sunshine hours, whereas
relative humidity (evening) exhibited a significantly negative correlation with coccinellids. However,
pod bugs (C. gibbosa and R. pedestris) and M. vitrata showed highly significant positive and
significant positive correlations with wind speed and maximum temperature, respectively.

Key words: Insect pests, natural enemies, seasonal incidence, Vigna radiate, weather factors

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