One source of organic pest control is Neem oil. Neem is an evergreen tree from India and oil is pressed from the tree’s fruits and seeds.
Neem oil is an excellent insecticide and fungicide without hurting helpful insects or humans.
Here are two good articles on how to use Need oil in the garden:
- Neem Oil to Prevent Garden Pests — Mother Earth News (HERE)
- Neem Oil Foliar Spray — Garden Know How (HERE)