Spray for full leaf coverage every 7–10 days as needed for suppressing disease or insect pests. Research indicates that pest and disease management is enhanced when neem oil is mixed with Karanja oil.
To make a spray, mix 1 oz warmed neem oil (or ½ karanja and ½ neem oil) with 2 tsp biodegradable dish soap, and add to 1 gal lukewarm water. Avoid spraying when bees are pollinating as neem is harmful to larvae and developing grubs. Certified organic oil. Note to certified organic growers: Restricted—may only be used if the requirements of CFR 205.206(e) are met, which require the use of preventive, mechanical, physical, and other pest, weed, and disease management practices. MOFGA
Also see Holistic Orchard Spray Kit.