The browning on the leaf edges in your first photo looks like drought. Your second photo is certainly the most colorful rhododendron leaf I've seen...but nothing I recognize. It's not clear to me what the insects are, but I suspect you may have more than one problem to address, cultural contitions (water) and what else, I'm not sure. I think the best thing for you to do is take a sample leaf for a visual ID as suggested earlier. I don't know exactly where you are...Seattle area, Wells in Medina has a very experienced staff (I was there just yesterday)but any full service nursery should be able to help. You can also type the name of your county, followed by extension agent office, into a search engine like google and come up with your closest extension office where they would also be able to examine a sample from your plant. Try to include one of the insects, put the leaf in a zip lock sandwich bag. And let us know....

tlbean2004, thank you for your response. I am located in Virginia Beach, VA. Our weather has been fluctuating a lot lately. A couple of the recent days have been very humid and in the 90's while other days have been cool 70's. We have also had spells of dry sunny breezy days and a couple rainy wet days. In regards to pests, I have found a couple of small "regular" spiders and one tiny red spider (spider mite?). I have removed all that I found, sprayed with insecticidal soap and have not seen any others for the last few days. Hopefully, someone here can identify the problem and has a cure. I am rather new to gardening and am learning as I go. :-)

Imontestella, I think the brown that was mentioned was at the base of the leaves. That's actually what reminded me of Gasteria because my Gasteria has this on the new pups it sends out. Not sure if it's a type of bloom or not but it's usually a bit powdery. Here's a top shot of my Haworthia limifolia before I re-potted it for reference. Please excuse the Kalanchoe hitchhiker.

Thank you, I had originally wondered about that but google can be a blessing and a curse because it didn't seem to look like those pictures of scale. I'll start treating immediately!