Tulip Poplar Trees
Q.

Solutions for Getting Rid of Aphids on a Large Tree

Zone Oregon, fairly wet, mild to ho | accordion added on August 5, 2011 | Answered

I need to get rid of aphids on a very large tree. Most solutions seem to be to spray the tree with some sort of substance, natural or otherwise. This tulip tree is about three times the height of the house, so spraying by hand is not an option. Any ideas?

A.
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Heather
Certified GKH Gardening Expert
Answered on August 8, 2011

Try neem oil. While you still need to spray the tree, neem oil is actually absorbed by the tree and kills the pests from the inside out. You only need to spray the tree as best you can and the whole tree will then become protected. Here is more information on neem oil:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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