Can Neem oil withstand a rain shower

Question

Used Neem Oil on my Japanese Maples to get rid of the inchworms, but it rained the next day. Do I need to respray?

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Answer 1

Yes, unfortunately, you do need to respray after it rains.

For more information on neem oil, please visit the following link:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm