my loquat tree is dying, please help!

Hello!
I have a young loquat tree in pot (4 years old). Last summer the leaves have started to get brown. I talked to one specialist in one of the garden centres and he said it's most probably because of overwatering. I kinda believed him because several months before, my friends were watering the plant, not me. So I guessed because the schedule has changed, the tree might reacted.
So i have replanted it in bigger pot (it needed more space) and tried to water as I usually do. The leaves are still getting a bit brown but slower a bit down. The new leaves start to appear and it made me happy that plant is recovering. But last month or tow, the leaves again got more brown and basically these is no any leave left on the plant with no brown. They are not falling down as mostly half of leaves are still green.
Recently I have notices the bugs, tiny tiny literally as dots, white and they occupied the most of new leaves, eat them and covered with net. so it's about 3-4 weeks there is no new leaves, obviously the new ones are being eaten by bugs. I don't know if the rest of the leaves became brown because of the same buga, but I doubt. I think there are two different things happening at the same time: bugs and brown leaves.
I have no clue what to do, what chemicals to use and how to save my plant! Can you please suggest what might happening and what solutions can be.Thank you in advance!

 

I'm assuming the plant is outside?
It wont grow any new leaves until spring.

Could you show us a picture.

 

no, its inside in a pot. i can show pictures if i figure out how to do it.

 

photos
thank you for willing to help!

 

Welcome to the forum mariaka.

May I ask where you live?

I am sorry but I abhore these trees and even more so the fruit. I can't imagine you will get fruit so are you just growing it for the tree itself?

 

Hi Victoria, my question is not about if I like its fruits or not, I want my tree to live and grow, and i will be happy to any advice.

 

Hello mariaka, you have not said where you live .... ? This is actually important for anyone to advise you on the problem.

 

london

 

Picture 1 shows it all.
Its red spider mite. I can see the webbing.

Its not really an indoor plant, but having said that dont put it outside now, assuming you are in the UK.
The warm dry conditions have allowed the Red Spider to flourish, they are the main problem.
Get a spray of Westland Plant Rescue, you need the one for ornamental plants.(important)
It kills Red Spider.
Just follow the instructions.

 

thank you! but what about brown leaves. i dont see this spiders on botton leaves and i have notices these bugs only a few weeks ago. i think there is something else cause the brown leave?

 

It could be the dry atmosphere along with the older leaves dying off naturally.

But I'm willing to bet the RSM has been there for longer than you know.
You only get the webbing in the advanced stages, up until then its hardly visible.

 

ok, than you Pete! i will try to get spray tomorrow and start to treat it! hopefully this is the only reason.
another thing - i recently moved and the plant standing in place where floor heating is working time to time. but it stand where heating doesn't go, so that part must be cold. do you think it can affect dry leaves? (actually i never thought of heated floor but just know i was thinking maybe it can be another reason too, even if its close to it)

 

I'd keep it fairly dry at the roots and as cool as possible during the winter months.
I'd also spray other plants that have been in contact with it.

 

ok, will do! thank you!

 

Hi Mariaka ,
Like Pete told you it`s a bad case of red spider mite , never even see so many webs in a such of small picture.
mine are growing outside , so in case you have a garden will be ideally to move them outdoor , if you love the plant so much , during June , asian shop are selling the fruits , collect some seeds and plant them , they are really easy to raise from seeds .