This should be used immediately before the oil droplets start floating. A knapsack sprayer is better for Neem oil spraying in preference to a hand sprayer. Spraying should be undertaken in the morning or late in the evening. During hot conditions the frequency of spraying should be more. In winter spraying once in 10 days and in rainy season, every day spraying is recommended.
Insects lay eggs on the underside of the leaves.
Hence it is important to spray on the underside of the leaves as well. It is better to use low concentration of extracts frequently. Each acre of land can be sprayed with 60 litres of ready to use solution.