Beginner Gardening: New to gardening in Charlotte - need help! Bug, etc, 2 by Shihtzumama1

Shihtzumama1 wrote:
I recently moved to Charlotte from PA and started gardening a few months ago. I chose what I thought were disease and bug resistant plants. At least that is how they were advertised. First, my serviceberry. I bought it 1st week of May, and little by little the leaves developed brown spots, yellowed and fell off. At first I thought it was transplant shock, but after much research, I determined it was rust. By yesterday it had such a severe rust problem that literally every leaf was affected. I cut everything off and now have a bunch of 2-3 foot sticks. I am thinking of returning it, but if they won't take it back, should I spray it now with a fungicide before it leafs out again? I love serviceberry trees - I have always wanted one. Please don't tell me I can't grow one in Charlotte. I am attaching photos. Next - my fig trees, blackberry bush, kokusa mulberry tree, tomatoes, zucchini, cantalopes, etc..... are covered with what I think are some kind of pest or pest debris. At first I thought it was just dirt that splashed and stuck on the plants from the wind and the rain. I don't think so anymore. In addition to the pests, the mulberry leaves are getting blotchy (light and dark green, perhaps headed towards yellow) and some of the leaves are bumpy and look deformed. I am attaching pictures of all this. I really, really need help! I'm so overwhelmed - this all happened in the last month! The trees and plants were birthday gifts from my husband. I am out there every day with my neem/dish detergent/water spray. It rinses the pests off the plants, but they are soon back. I won't even say much about the japanese beetles on my fuyu persimmon. I'm out there with my bucket of soapy water. Any advice/suggestions appreciated. I have more photos, but I could only attach 5. I hope these are good examples.