The Tropical Fruit Forum

Nothing seems to be all that wrong with your tree.  The crinkling of the tree's leaves was caused by an insect called a thrip.   The damaged leaves are still producing energy to the tree.  This happened when the leave were still very new and young.  To prevent this happing to the next flush of leaves spray them with a good horticultural oil every 3 or 4 days until the firm up to kill the thrips.  Thrips are very tiny and extremely hard to see.

Ilya11,  I notice you just push your seeds partially into the soil, with the top half of the seeds still in the air.  I have always buried my seeds  1/2 to 1 inch into he soil.  I further noticed your method of seed germination was very high, and still applied enough moisture to the seeds for a high germination.
Thank you for your post.

To me it does not look anything close spider mite damage.  Unfortunately, I think the tree has a bacterial or viral disease

Zagara from your photos it looks like you actually have 3 separate trees growing in the same container.

All the cautions you want to do, is up to you.  It is no ones business, except you.   Horticulture oil is as safe as you get, when you need something to control aphids, thrips, mealybugs, spider mites, white fly  etc.  Horticultural oil sprays is so safe it is even allowed to be used with organic gardening systems.  You will not find anything safer that actually works.  There are many branes of horticultural oils on the market, and Ultra Fine is the best and purest in my opinion.

Oil-based insecticides have come a long way in the last few decades.  Lighter and more versatile than the “dormant oils” of yesteryear, today’s horticultural oils can be used at most times of the year and are effective against a wide variety of insects.  They’re also among the most benign pesticides, decomposing within a few days of application and causing minimal harm to beneficial insects and other untargeted organisms.  Accordingly, many brands of horticultural oils are OMRI LISTED for organic gardening. (From USDA)

I also use Jacks  HPF  25-5-15 . I have used it for 15 years, works great.

Sadly if you live in Florida your trees will certainly die from HLB, NO MATTER what chemical you use.  The only thing that has been found to work is covering the tree with the screening that the people use when growing under cups.

The bloom on your is called an off season bloom.  Often is caused by some type of earlier stress to the tree or by late  pruning

Most definitely Nagami.

Boris, where do you get that Kumquats have problems when growing of their own roots?

I use 25-5-15 by Jacks Professional Company.  This formula provides the 5-1-3 fertilizer required by citrus..

My Shiranui /Dekopon are still green, and have not started to turn color...