Q.buggies in soil.
I asked two yesterday. Instead of hot water to control collembola, would the roots fair well with DME soil (5%) mix? Image is of one 600X. Also Mealy bugs abound. Cheers.

We recommend you remove the old soil and repot your plant with a good quality potting soil. Remove as much of the old soil from around the roots as you can.
Discard the contaminated soil.
These links will help you with more information.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/types-of-potting-soil.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm