How can neem oil be effectively used to protect tomato plants from pests and diseases?

Neem oil can be used to protect tomato plants from pests and diseases by mixing it with water and spraying it on the plants. The oil acts as a natural insecticide and fungicide, repelling pests and inhibiting the growth of harmful fungi. It is important to apply the neem oil regularly, especially after rain or watering, to ensure continuous protection for the tomato plants.