Invasive curry leaf tree

Question

I live in Bali and have a curry leaf tree growing in my garden that sends out prolific underground shoots that are difficult to remove. How can I stem the tide of these unwanted interlopers?

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Answer 1

Yes the root suckers are a common problem. One way to limit the spread is to dig a trench and install a "root barrier".
But you can't do that too close to the tree or you will cut too much of the root system.
Closer to the tree you are limited to cutting the suckers down to soil grade periodically.
Do not use an herbicide to poison them or you could kill the parent tree.

https://www.gardeningknowhow.com/edible/herbs/curry/growing-curry-leaf.htm