Whitefly Control — How to Identify, Treat & Prevent Whitefly in Your Crop
Whitefly is one of the most destructive sucking pests in Indian agriculture, responsible for direct feeding damage and virus transmission. Early detection and the right systemic insecticide can save your crop.
How to identify whitefly
Watch for these signs in your field.
Yellow, curling leaves
Leaves turn pale yellow from the underside, then curl downward as feeding intensifies.
White insect cloud on disturbance
Tiny white insects fly up in a cloud when the plant is touched. Check leaf undersides.
Honeydew and sooty mold
Sticky honeydew on leaves leads to black sooty mold, blocking photosynthesis.
How to control whitefly
Follow this step-by-step protocol for best results.
Scout at ETL threshold
Check leaf undersides in 5 spots across your field. Spray when you find 6+ adult whiteflies per leaf (Economic Threshold Level).
Apply systemic insecticide
Use Imidacloprid 17.8% SL (0.3 ml/L) or Thiamethoxam 25% WG (0.3 g/L). Add a sticker for better coverage on waxy leaves.
Rotate chemistry groups
Do not spray the same molecule more than twice per season. Rotate: Neonicotinoid → Spiromesifen → Pyriproxyfen to prevent resistance.
Which crops are at risk?
Tap a crop for the full pest management guide.
Whitefly — Common Questions
Which insecticide is most effective for whitefly?
Imidacloprid 17.8% SL, Thiamethoxam 25% WG, and Spiromesifen 22.9% SC are proven options. Always rotate between chemical groups each spray to prevent resistance buildup.
Can whitefly spread virus to other plants?
Yes. Whitefly is the primary vector for Cotton Leaf Curl Virus (CLCuV) and Tomato Yellow Leaf Curl Virus (TYLCV). Controlling whitefly early is the only way to prevent virus spread — there is no cure once a plant is infected.
What is the best time to spray for whitefly?
Spray in the early morning (before 9am) or late evening (after 5pm). Avoid spraying during the hottest part of the day or when bees are active.
Still struggling with whitefly?
Describe your situation to our certified agronomists — they will recommend the right treatment for your crop and region, free within 24 hours.
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