Posted: 21/06/2016 at 13:19
I've enlarged the photo and can see the white dots and what I think is the insect.
Are they really pests? Are they doing any damage? Or are they just part of the micro-fauna that contributes to the health of the soil - there are millions of them, ones you can see and ones you can't
It's really not a good idea to kill creatures indiscriminately - your garden will be the worse for it.
I would leave them alone - they're probably just part of nature's wonderful world.