i recently recieved a mandevilla as a gift, and i have been having trouble finding any specific info on it. i'm getting flowers that are showing white spots on them that look like someone simply decided to rub off or erase some of the pink, and i wonder if that particular part of the flowers is not getting enough sun? i've also been having problems with pests, they just seem to love the insecticide i sprayed on them, i had no ants until i sprayed it, so now i have ants on top of red spider mites and aphids. can anyone recommend a good brand of insecticide? also i've got what looks like some more vines growing from the drainage hole in the bottom of the pot. i'm guessing maybe it needs repotted, and i've read that mandevillas like to be rather tightly potted, so i'm not quite sure what to do. i don't want to take it out to look if they are sensitive to being unpotted, if anyone has some experience with these plants i would really appreciate some advice.