Viral Diseaseसोयाबीन का पीला मोजेक वायरसParts: Leaves, Fruit/Pods
Soybean Yellow Mosaic Virus (YMV)
Affects: Soybean, Black Gram, Green Gram
Primary Chemical Cure
Control vector Whitefly with Thiamethoxam 25% WG or Diafenthiuron 50% WP
80-100 gm Thiamethoxam 25% WG per acre.
Economic Threshold (ETL)
Presence of vector Whitefly @ 5-10 per plant.
Initiate spray only when crossed
Bio & Organic Option
Spray Verticillium lecanii entomopathogenic fungus @ 5 gm/liter + Yellow Sticky Traps (20/acre).
Key Visual Diagnostic Symptoms
Inspect Leaves and Fruit/Pods in the field for these definitive physical manifestations:
- Bright yellow patches intermingled with green islands on trifoliate leaves.
- Entire canopy turns brilliant yellow; infected plants produce smaller, shriveled, malformed pods with few seeds.
Weather & Climate Factors Fueling Outbreaks
Warm sunny weather with high populations of vector Whitefly (Bemisia tabaci).
Track real-time rain and humidity on our Aaj Ka Mausam Radar to preempt epidemics.
Preventive Agronomic & Cultural Controls
- Sow YMV-resistant soybean varieties (e.g., JS 20-34, JS 20-29, NRC 37).
- Rogue out and burn infected yellow plants in early seedling stage.
Recommended Active Molecule
View technical dilution rates, rainfastness intervals, and genuine brands:
Thiamethoxam 25% WG
Neonicotinoid (Thianicotinyl) • 80 – 100 gm per acre
Calculate Chemical Spray Tank Mix
Calculate exact chemical dilution for your knapsack pump or field acreage before spraying.
Open Dosage CalculatorFAQ
Frequently asked questions
The recommended chemical control is Control vector Whitefly with Thiamethoxam 25% WG or Diafenthiuron 50% WP, applied at 80-100 gm Thiamethoxam 25% WG per acre.. Ensure complete foliage coverage, spraying during early morning or evening hours.
Presence of vector Whitefly @ 5-10 per plant.. Chemical sprays should only be initiated when the pest population or disease incidence crosses this threshold to avoid unnecessary spray costs and pesticide resistance.
Yes. Spray Verticillium lecanii entomopathogenic fungus @ 5 gm/liter + Yellow Sticky Traps (20/acre).. Combining biological controls with cultural practices like crop rotation and removing infected plant debris offers sustainable control without chemical residues.
Soybean Yellow Mosaic Virus (YMV) predominantly infects Soybean, Black Gram, Green Gram, attacking the Leaves, Fruit/Pods.