what do wooly aphids look like?

Question

I have these white wooly looking things on my apple tree. Neighbor told me this is wooly aphids. I never had them before. How do I deal with them?

Answer 1

Here is a couple of links with more information.

https://www.gardeningknowhow.com/plant-problems/pests/insects/woolly-aphid-control.htm
http://www.extension.umn.edu/garden/insects/find/woolly-aphids-on-trees-and-shrubs/