The Tropical Fruit Forum

I have two Shikuwasa trees. The leaves shown in Peep's pictures don't  look like the leaves on my trees.

I had an inground Bizzsrria tree which I got from Lazz.  I had it for a couple yeas, but finally got tired of caring for it, especially as the fruit was not of eating quality. I replaced it with a Red Grapefruit.

Actually, you would have been better off not putting the two inches of gravel in the bottom of the container, as doing so just raises the perched water table 2 inches higher in the container. 

At those winter temperatures your citrus should do very well.  I do not foresee a problem.

Welcome to the forum.  We are happy to have you as a member. There is a difference for fertilizing a plant that is growing in a container , and one growing in the ground. Plants growing in the ground do fairly well  when using organic fertilizers.  That is because the soil has plenty micro organism to break  down organic fertilizers into usable elements that the roots can use and absorb.  However. in container culture this is not so, because there is not enough organism to break your fertilizer elements into usable elements that the tree can absorb..  Your container trees will do much better using a commercial fertilizer.   Your previous growing method is much of the reason that some of your seedlings died.  I wish you and your tree well.   For kumquats, varieties, only Nagami  does not come true.

At  the present stage of growth I would leave the tree alone.

Botanical pilot,  nice helpful post.  It surely  will help those members that want to learn.

Looks like a good year from all your efforts. Congratulations.

Urea fertilizers that  are high in biuret can cause leaf burn.  if your urea does not show a biuret content you could spray a small portion of leaves and see if there is any  leaf burning affect.  If not then the biuret content in the product will be OK.

Vnomonee, Yes low biuret Urea does a good job helping a tree to retain fruit.  However, research has found to accomplish fruit retention low biuret urea has to be sprayed in march or April.  This is because once the opportunity to increase flower number has passed, later applications of low biuret  urea will increase the retention of abscising reproductive organs (fruit).

This week is the time to foliar spray your citrus trees with low biuret urea.  Doing so will produce larger sized fruit.

Yes, it is white fly, crush they with your fingers.

Looking again it does look like a magnesium deficiency  However it certainly is just a lite case.  Spray the tree with Epsom salts and drench the soil with 4 ounces of Epsom salts per gallon.   Apply in the early morning.