John, I suggest you contact the manufacturer of the product you are planning to use. I am not certified as a pesticide applicator and can't by law advise you on greenhouse use. Look on the label and you will find an 800 number for information. Best And Happy Yardening, Nancy.
How to Apply Neem And Volck Oil Spray
Question From: j. rocharz - MASSACHUSETTS
Q: Could you use neen oil every two weeks if nessaray? Some of the other oils like volek oil spray say you can only use it 4 times for the season. Is this true with voleck oilspray? I am applying this in a greenhouse.This is a contuinous season, I'm using oil spray on ornamentals in the houses for scale and mealy bugs. Will that rule still apply as well?