That spotted bug may be the Sri Lankan weevil. When I lived in S Florida (hot and humid) they were everywhere chewing the leaves on everything. Since moving to North Central Florida, haven't seen any.
I have a passion for roses and my close friends think I do well. Probably only because I have them and always get more and funds allowing I buy specials and share the extras.
I look at all yalls pictures and find my plants are actually lacking. All of the hybrid teas are grafted and a few think they need to be trees. Those would be some of the Lincolns. One is now about 10 feet tall and supported by a shepherds hook. I can't even dead head without a large ladder.
No doubt I should be doing more and in reading here will find what I should be doing more of.
Luckily, I don't seem to have a diseases here nor bad bugs to fret me. A little black spot seems to me managed with a monthly summer dose of "Messenger".
I look forward to more readings of your experience and expertise.