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Research Article Open access CC BY 4.0

Epidemiology and Management of MYMV Disease in Mung Bean (Vigna radiata (L.))

Preety Verma, Vinod Kumar Malik, Pooja Sangwan, Rakesh Kumar, Pankaj Yadav, Mamta Khaiper, Bajrang Lal Sharma, Niharika Sheoran, Nisha Yadav, Monika Jangra, Janvi Malik

International Journal of Environment and Climate Change · pp. 87–97 · Published 2 Mar 2023

10.9734/ijecc/2023/v13i31685

Abstract

Mung bean is a short-duration ancient legume crop that can be grown as a sole or intercrop for grain and green manure in all three crop seasons, including winter, summer and rainy in various regions of the country. MYMV (Mungbean Yellow Mosaic Virus) disease is one of the most destructive diseases transmitted by whitefly (Bemisia tabaci Genn) persistently. Weather parameters have no direct effect on MYMV, but affect the whitefly population. Field experiments were conducted for three consecutive years from 2019-2021 as to know the effect of weather parameters on the whitefly population. Development of whitefly population and MYMV disease severity were recorded in mungbean crops at 7 days interval starting from 20 days after sowing (DAS). The present study showed that whitefly population builds up starting in July and reached to maximum at end of August to early September. There are various factors influencing the build-up of whitefly population viz., maximum temperature 36±2°C, minimum temperature 25±2°C, morning relative humidity more than 90 percent, more sunshine hours and no rainfall prevailing during that period. Whitefly population had positive significant correlation with maximum temperature and bright sunshine hours while evening relative humidity and rainfall were recorded as negatively significant. Three-year data is very helpful in guiding the farmers for timely and preventive sprays based on existing infections and the population of whitefly in a season.

Persistent manner MYMV disease Bemisia tabaci bright sunshine hours whitefly preventive spray

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