My wife loves saturn peaches. Would plant a single one otherwise. Been bug resistant, far as the leaves go. Got to say the 2 peaches have beaten out any apple tree for tree size. Got both from stark brothers, so who knows what the rootstock is. I spray copper in the early spring for peach leaf curl. The 3 yr old tree doen't have a lick of it. The 2 year old one has about 5-10% of the leaves curled up. No aphids, no beetle, no caterpillars this year or last. I do spray mostly malathion monthly. But, even before the spray no critters in mine.
NJ is amazing for farming. Outsiders would of never guessed it. By far my favorite state in the northeast area. Great fishing, decent taxes, tons of job opportunities. A coworker's father owned a chinese vegetable farm in NJ. Hunted there 3 or 4 years. Was a bit too easy...... bok hoy, daikon, cabbages, eggplant.