Answer: That's a good question. I'm not absolutely sure. Since Sun Spray is a petroleum-based product, like the earlier dormant oils, it could well have the same restrictions. However, there are new cottonseed-based horticultural oils which may not have those restrictions. "Oil Away" Insecticidal Spray is one example. It is sold by Gardens Alive (ph# 812-537-8650, e-mail: email@example.com). You might contact them directly and inquire about both spray products. Sorry I couldn't be of more help--good luck with the trees!
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