Weedicide drift from neighbour damaged my crop, what to do?

Hormone-type weedicides like 2,4-D are very prone to drift, and even a small amount carried on the wind can twist, cup and curl the leaves of sensitive broadleaf crops like vegetables, cotton, tomato and grape, sometimes from a field some distance away. For the damage already done, there is no spray that reverses it; if the plants are only lightly affected they often grow out of it with good care, light irrigation and balanced nutrition, but badly hit young plants may not recover. To prevent it in future, the spraying farmer should never spray hormone herbicides on a windy day, should use a flat-fan nozzle at low pressure and a shield or hood near boundaries, keep the boom low, and avoid spraying when sensitive crops are growing nearby or when hot updrafts (vapour drift) can carry it later. Talk to your neighbour and agree to spray only on calm days and to warn each other before spraying hormone products. In a serious case you can involve the village panchayat or local agriculture officer. Keeping a buffer strip and recording dates and damage with photos helps if there is a dispute. Always use herbicides per label and avoid drift, since it harms others crops as well as your own.