Use the following regimen to control insects i.e., aphids, leaf miners, scale, spider mites, gnats, and caterpillars.
Clip off leaves affected by the insects.
Organic Insect Control Recipe
1/2 tbsp Spinosad
1/2 tbsp mineral or vegetable oil 1 tbsp Dish dawn soap
16 ounces of water
Shake well and spray your tree with this mixture up to once a week, as needed for pests.
If your tree is outdoors and in a hot climate, spray in the evening and wash oils off in the morning. Oils will cause the leaves to burn in direct sunlight.
Spinosad is a natural substance made by soil bacteria that is toxic to insects. This is an organic method of pest control. If you don't have Spinosad, try the same mixture without it.