Moong leaves turning yellow with green patches, plants stunted.
How to control yellow mosaic virus (YMV) in moong (green gram)?
SSandeep Kumar8mo ago · 269 views
5 Answers
🌾Farmer.in Krishi TeamExpert ✓8mo ago
Yellow mosaic virus (YMV) in moong is spread by whitefly, so the strategy is to grow resistant varieties and control the vector, not to cure infected plants. Use YMV resistant or tolerant varieties such as IPM 02-3, IPM 02-14, SML 668 or Virat. Rogue out infected plants early. Manage whitefly with yellow sticky traps and recommended insecticides only when populations are high, and avoid excess nitrogen which attracts whitefly. Summer sowing often has lower YMV pressure than late kharif. There is no chemical that cures the virus once a plant is infected, so prevention through resistant seed and timely whitefly control is the key. Confirm resistant varieties available in your area with the KVK.
MManju Bala8mo ago
Yellow sticky traps worked well for me to catch whitefly early and to know when numbers were rising. I put them just above the crop canopy and moved them up as the crop grew. They are cheap and gave me a warning before the YMV started showing.
TTarun Saini7mo ago
Sowing time changed everything for me. My late kharif moong always got heavy YMV, but the summer crop after wheat had far less because whitefly pressure was lower. If your area allows summer moong, that alone reduces the virus a lot.
FFiroz Alam7mo ago
Do not skip roguing the first infected plants thinking it is just a few. Those plants feed the whitefly which then spread the virus across the field. I walk the field weekly in early growth and pull out the mottled stunted plants, which kept the spread slow.
KKavita Rana7mo ago
Avoid overdoing nitrogen and lush growth, which I learned the hard way. The heavily manured strip pulled in more whitefly and got more YMV than the rest of my plot. Balanced nutrition with proper Rhizobium and phosphorus is enough for moong; extra urea just invites the pest.