Complete leaf drop from my aralia. I recently sprayed for aphids that were eating all the new shoots.
All of the old foliage had dropped; any help would be appreciated.
Certified GKH Gardening Expert
Here are the most common reasons plants drop their leaves. It's usually over or underwatering, temperature change, humidity, or fertility. I don't think your plant spray affected it, but aphids are sucking insects, they don't consume the plant, so make sure what you used was appropriate for sucking insects.