Removing 3 inch thick roots from fruit tree

Question

We had an orange and lemon tree (entwined?) in our new garden. The blossom was peachy/pink and we have now cut this ‘tree’ down – it was about 7 ft high x 6 ft wide. We are left with 12-inch shoots/roots and they are about 3 inches thick. What is the best way to get rid of these, as they are too tough to dig up (we are ‘older’ people!)? Is there a cheap way of doing this? We will not be planting in that area so could we use bleach as an alternative?

Answer 1

Here is an article on stump removal. I think if you treat the big roots as if they were stumps, you can get rid of them. https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-stump-removal.htm