| g'day car_illawara, i don't think that the bugs will be free agents in the soil as such, they do need to be living on plants above the ground or on the roots of plants. the problems you need to deal with is the ants as it is very likely they are bringing the mealy bugs in as the bugs are one of their symbiotic friends so to speak. you will also need to destroy all the old plant material niot sise to compost it. i would also suggest in the case of tomato plants if you detect infesting always pull the plant and destroy it. len |
Here is a link that might be useful: lens garden page