Thank you everyone for the questions and advice!! Both trees are in my backyard, not in containers but in this I would call a raised bed?! The previous owner loves gardening so I think the orange tree probably got quite a few years in it while the lemon looks pretty young to me. Since I took over a year or two ago, I fertilized about twice a year with those MiracleGrow sticks for citrus. The trees receive a lot of pine needles from several huge pine trees on a slope behind the orange tree, however, I have not tested the soil PH. I'm in zone 10 and my yard unfortunately is facing northwest which I believe resulted in less sunlight and colder temperature in the winter. Below I've posted some pics of the trees: Here is a link that might be useful: Meyer and Lemon Trees

Linda, I am afraid that I have tried many applications of Meyers and never like the result, in complete contradiction to John and many others to me anything that has a Meyer in it would be better with a traditional lemon. Meyers have a "dirty" taste most of the time and at best have a weak orange flavor. I cannot tolerate drinking anything with Meyer in it, or any fresh application. I have made cakes, curds, pies, lemonades, fish with lemons cooked or grilled on top, etc with Meyers and never particularly like the result, though cooked they are more tolerable then anything with the fresh juice. However I had to toss out the salmon I made as the orange undertone flavor was awful. I just tried a jar of preserved lemons I made with Meyers and they were very bland compared to traditional preserved lemons. I keep trying to like them but I haven't found anything I prefer with them in it yet, mostly just things I find less offensive. I used to cook professionally and used Meyers pretty consistently in many applications and still never cared for them (same with kumquats though I REALLY don't like Kumquats and don't even want to try them in things anymore). I am pretty sure I am a traditional lemon kind of girl, which means more Meyers for the rest of you that like them! ;) Also I agree that its likely that your rootstock is taking over, cut off any branches that have different fruit and take note if the leaves look different in any way to your orange, that way you can identify it earlier and remove branches before they fruit and steal energy away from your oranges. Take pictures so if it happens again years from now you won't be struggling to remember what they looked like. Its likely that your neighbor had a tree whos scion died back/was taken over by its root stock at some point. If your friendly with them and they are the ones that planted the tree ask them what kind of tree it was when they planted it and if it changed at any point. If they didn't plant it they may not know. If you show us a picture of the tree we could help you figure out when to prune it.

I just wanted to post an update: The lemon tree seems to be in a stage of stasis. The leaves are not getting any greener, or yellower. I had started as Josh suggested on the 5ML dose. But that doesnt seem to be making any difference. I hated the nursery soil it came in. Last week, I decided what the heck and just repotted it into the gritty mix. I have repotted other plants before without any negative effects on the plants. So that gave me a bit of confidence. I barerooted the lemon tree. Rinsed up pretty much all of the previous soil mix. I didnt notice any roots coming off or getting damaged. So hopefully it will be okay. its been 5 days now since the repot. I guess this tree just wont react to anything I do to it. haha Still the same. Didnt get better, not getting worse. Certainly no leaf loss or yellowing. No new foilage either. Lastly, I decided to just remove all the lemons that had formed on it. There must have been 30 or more. Hopefully this will also help it. (okay I left one. The biggest one). =) I will update again in a while. This post was edited by TorontoNick on Tue, Jan 20, 15 at 23:14

Silva- My trees look just like yours lately... I am in central Florida so took soil samples to UF 8n January. We were in a drought then. Numbers were ok. Few leaf miners but that is no big deal. Then about May? the trees starting looking poor. Much rain. Over the summer we have had 2-6" almost daily. On August 20th we had the total amount of yearly rain already. Took another sample of soil in and times/fertilized. UF says the huge amount of rain is washing nutrients from the soil throughout our region. The trees are not really 'thirsty' so even when fertilizer is applied it is not taken up because ground is always wet. Then that days rain ...and the next... and so on... wash away the nutrients. Everyone zI know is having same problem. Scary because I don't want our wells contaminated with fertilizer salts.