Azalea leaves are swollen, distorted, fluffy white

Question

I have a small azalea in a pot on the patio. Some leaves have swollen and curled with a fluffy white coating. What is causing this and what do I do?

Answer 1

If the white, fluffy coating is on the soil, as well as leaves, this could simply be mold or a fungus from too much moisture. Allowing the pot to dry out some and treating with a fungicide, like neem oil, should help. It could also be an insect pest, since you notice distorted leaves. Anything from mites to mealy bugs could be the culprit. Check the leaves closely for insects and remove any affected leaves. You can also treat the shrub with neem oil for insect pests too. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm