Question: query regarding management of leaf curl disease of chillies. 
Answer: please remove the excessively  affected plant parts from the plants, then durn/buried them away from the field. after that please spray rotenone 5gram/liter or neem oil 5ml/liter or bacillus thuringiensis 2ml/liter of water 3 times at 4 days interval in the evening time in the absnce of rain.