Is there anything which I can use on my vegetable patch which will
kill all ground-living insects ?
That doesn't sound like a good idea - killing both useful and harmful
insects. If anything was that toxic it killed all ground living insects I
certainly wouldn't want to eat any veg grown there!
Are there some particular pests you want to get rid of?
--
Drakanthus.
(Spam filter: Include the word VB anywhere in the subject line or emails
will never reach me.)