Ants are not plant pests but may be attracted to honeydew produced by some other insect. Bloom rot is usually not insect related but rather diseases which are encouraged by rainy periods. There are sprays for pests and diseases but such are usually not needed on azaleas so I would not tend to reach for a spray, but rather just pick out any damaged blooms and let them grow on because they will likely improve especially as the weather warms up a bit more.
Thanks for the question. Please stop in again soon!
Q&A Library Searching Tips