How to Apply Neem Oil
- 1). Dilute Neem Oil to 1 tablespoon per gallon. Most spray bottles hold around 32 ounces so you would use a little less than a teaspoon per spray bottle.
- 2). As oil and water do not mix you will need an emulsifier to help disperse the Neem Oil in the water. Liquid dish soap works well and about a teaspoon per gallon, or a couple drops per spray bottle, should do the trick.
- 3). Apply enough solution to both sides of the leaves to provide complete coverage. Frequently mix the solution as you spray.
Source...