Fish fert is mostly for N and N is to induce greater vigor. When trees are small, I like to get them to size as quickly as possible but once they are bearing meaningful fruit I am careful to not overstimulate vegetative growth with excessive N- damaging fruit quality and making trees and fruit more susceptible to pest problems. Fall fertilization is not dangerous and is actually helpful to get N to the buds before mid spring and get growth to most vigorous start. It is late summer N that can sometimes postpone dormancy and hardening off that protects trees from winter damage. This danger is highly exagerated in the literature in my opinion as you get exactly the same results here when we have early summer drought and then soaking rain in mid-august. Some trees do get a late surge of vigorous growth which itself can suffer winter kill but by my observation the rest of the tree does fine. I'd be curious of the observations of others on this point. This is one of many observations I've made over the years that makes me ever vigilant to expert BS even as I continue to go to pedigreed experts for certain kinds of advice. Speaking of the advice of pedigreed experts, Cornell recommends a general application of 2 pounds N per 1,000 sq ft annually for general orchard maintenance if you are not doing a soil and tissue analysis kind of program.

Well, I didn't prune the two older ones (Bartlett Pear and Honeycrisp) any more than I did last year, which is to say, lightly-to-moderately pruned and they flowered fine last year... and I BARELY pruned the two younger apple trees, since they did not have much growth to begin with.... I just can't imagine how I would have pruned off every single branch with flowering capability on 4 different trees, unless I really pruned them super heavily, which I didn't. The Honeycrisp apple got the most pruning this year, but I followed various tutorials and felt I was actually probably not taking enough off. But I am new to this so I guess I could be wrong! In any case, the other 3 only got very lightly pruned. And, no, no flower buds ever showed up at all. I have to get my yard ready for a delivery of 10 tons of gravel thats on its way, but I'll try to take some photos later on so you can see how much I pruned.

I cant find any plums on my toka yet but same as you, i looked a bit later and found some. They didnt last on the tree though, I guess some birds got them. This year I cant see any at all, but the the tree had lots of flowers and is grown in well so its a mass of green.

I think the tree is a ruby star grapefruit. I feed it all kinds of stuff like foliage pro, citrus tone, fish emulsion, Azomite, blood meal and bone meal not all at the same time of course but probably every 2 weeks. It is on my back deck getting full sun and it is in a pot. The tree is four years old. In the winter it is in a heated garage with a grow light and a humidifer. All my citrus trees have lost a lot of leaves and I thought sure they would grow more after being outside but summer is almost over and they didn't grow any. It was in potting soil and did nothing, transplanted to Al's gritty mix and they didn't look so good so I mixed it half and half of potting soil and Al's gritty mix which they are currently in. The leaves look droopy. I don't want to lose them but I don't know what to do. Sometimes I give them potash and Epsom salts. I will try to upload some pics.