Hello everyone.
I do hope all is well with you guys.
I have tried to follow your advice as closely as I could, with a little bit of my own additions.
I am happy to report that the tree has been in it's new pot for almost a week now and it seems to be going very well.
I did not feel comfortable with using any pesticides so I just used water from a spray bottle to get rid of the thrips infestation. It was hard work and I doused the tree regularly every evening, for the last two weeks. Good advice Leatherback.
I could not find a replacement pot that was large enough and light enough to fit into my boot so I opted for a gigantic bucket instead. With the bottom drilled for drainage, I filled about 5cm of medium sized gravel and pebbles.
Then with much untangling, tugging, sliding and twisting, I freed the tree from its old pot, and placed it in the centre of the new bucket. The new bucket is about 10cm wider than the old pot.
Please see the pictures attached.
Pic 1 is the tree as it was, just moved out of the shade of the other trees.
Pics 2 and 3 are the roots that were swirling around the drip tray from the the bottom of the pot.
Pic 4 is the tree laying its side on an old shower curtain so I didn't create too much of a mess.
Pic 5 is after I rinsed the roots to make them easier to slide out the drainage holes of the old pot.