Controlling Aphids - Crape Myrtle
So, I installed a crape myrtle at my house this past winter, and it was doing well until a few weeks ago. I went on vacation, and when I came back yesterday the tree has an aphid problem.
My question is, what is the best way to get rid of them?
The tree is understoried by irises and liriope, if that plays into this decision. I've researched it and come up with a variety of options, but I was wondering if one is better/easier/safer than the others.