Wow. Ill keep spraying my 17 trees until I can afford an orchard that size..... Ha who am I kidding, I am going olive if I ever get around to it, the lazy man's tree. I think the best advise for home growers is stick to the resistant varieties of citrus and leave the bulk stuff to the big boys. Continue to spray your foliar sprays and keep them as healthy as possible which unlike normal giant groves is much more doable and cheaper than it is on a big scale. Or just go with non citrus fruit trees, for many of us, this is Florida after all.

Something that is going to kill off fungus is not a good idea, especially if you are mulching since fungus is a primary beneficial inhabitant of mulch. Going high organic content is perhaps the safest and most reliable means of keeping them off your tree. I have read reports that say that population tests have been done in high and low organics soil and they found the same rough amount of nematodes in both soils but in the high organics they were not infesting the trees. Not to mention a healthy tree is better able to withstand and fight off pests and disease and usually a high organic content soil will help greatly in this. My recommendation is a good hard/soft wood mulch 6-8" deep(to start, it will compress) about 3-5 feet around the tree with a fungus inoculation. Fungus will form on its own, it just takes a bit more time, having the two types of wood will encourage different types of fungus and diversity is always a good thing. Other than that, keep your trees healthy and you shouldn't have to worry too much about nematodes.

Well its either do this, hope that a cure is found or let the disease(I refer to greening in my case since DNA is a route they are going there as well) wipe out everything except one or two trees that have the genetic trait that lets them survive and use those to replace everything. That's how nature works and why humans at several points in our ancient history were on the cusp of survival for one reason or another. I read a report the other day that says citrus is teetering now and within ten years will be destroyed in FL. I personally would prefer they find a cure, but if they do not,  I definitely do not want everything wiped out so as a last ditch attempt. Ill side with GMO over losing everything. Not like adding a pig gene will be noticeable to anyone(mmm bacon flavored orange juice....). I had heard it was spinach before so the pig thing is new to me.

OMG its the new SUPER FRUIT!  Couldn't resist throwing the most over used word in dietary science out there lol. Glad I have one, cant wait til it starts fruiting.

We finally got a good drenching yesterday with showers throughout the day and into the night. That was one of the driest periods I have had so far in hot weather and even my "Doesn't give a crap" grass was browning. Made for a muddy bike ride in the nearby state park as well which is always entertaining

If you don't live in the dozen or so states that don't allow shipping of unapproved citrus. Neat tree though if you trust the seller.

The pressed Neem oil is the one that solidifies under 65 degrees, it is a lightish brown liquid that has a nutty butter amell to it. Apparently the extract which from what I read is not as effected as the extract and misses some things. Kind of like Liquid fish and Fish Emulsion. You arent supposed to spray Neem above 85 due to suffocating or burning the leaves(forget which).

Well since I think I fried two of my Lychees by putting Neem on them and having the weather spike the next day(oddly it only affected two of them and not the rest or anything else), what is a good organic replacement for Neem? Preferably something that takes out leaf miners and caterpillars too.

Allspice is a fairly tall tree not a hedge. Its just slow bushy growing. I have a few. I didnt see what area you are from but I wouldnt plant it above 9b. They got frost burn during even our mild winter which is still visible on the older leaves.

Kei Apples. Big thorns and edible fruit. Grows into a hedge form naturally. Very drought resistant. From South Africa I believe. I had heard it was such a good easy fruit that the UN was growing it in regions subject to famine for the natives. Note it isn't related to apples at all.

Hmm looks like the trees on my shortlist might be getting pulled sooner than expected. I actually don't have a normal lime tree, just Key lime. Now which underperforming tree gets the boot....

I am in a cool microclimate of 9B. We usually are about 10 degrees cooler than neighboring Orlando in the winter. I have two Jabo's and they are planted about fifteen feet from each other and have been for the last couple years. I had no trouble in the brief frosts we had this past winter, one frost they were protected, the other was a surprise frost where they were predicting upper 30s and we got well below that. The year prior we had a few more and I didn't do anything to protect them. One went through with flying colors and didn't even have leaf damage. The other got hit hard by one, and lost all leaves the next one. But it came back with new leaves in spring.

I never understood the 9a/9b and which one is cooler than the other. I personally think my microclimate is an 8 but who am I to argue. I know mangos, papayas, and starfruit do not last the winter in my area, but the Jabo's do.