I am not somewhere where I can watch the video, but will watch it later and will try to help then if I can.

Hi. I started to watch your video, but just do not have 10+ minutes to tease out the questions. I think you would get much more help here if you would just type out a few specific questions with attached images. I think your idea of a video is interesting, but just not practical for most of us to watch.

Also too, I wish I could help but your trees looked fine to me and I am not a Citrus In ground expert...

Thanks folks.

Steve, that makes sense about nitrogen. After this video, I had a bunch of old fertilizer 2020 20 I hadn't used, and as it was the end of season I threw way more than I normally would, about two or three cups around each tree. Well I had a huge burst of growth on a couple, mainly the lemon and mandarins. But my Kabos, which has produced quite well from the beginning, most of the leaves have turned yellow, which is a bit weird. Most of these trees of been in the ground for almost 2 years now, and the growth has not being very good on most of them.

I'll try to find a citrus specific ratio, as I've heard 2020 20 is not good, and absolutely blitz them with fertilizer during the growing season. I imagine I should raise the pH a bit as well. Anything else?

I'll have to find a way to try that winter light trick to. It'll have to be a battery operated light.