I have unbelievable amounts of fungal gnat larvae in my garden soil. Have had for years. But it's now getting in the way of me establishing outdoor Stropharia beds in my yard and I'm over it.
Anyone have experience with predatory mites for knocking fungus gnat larvae on the head- specifically in garden soil ( not potted plant/ greenhouse ) environments?
http://www.bioworksonline.com.au/index.php
Other possibilities for dealing with the ongoing infestation have been rejected, but have included letting the neighbours chooks in the yard for two or three gnat breeding cycles, dernching the whole place in neem on a regular basis, and totally razing the surrounding vegetation so that the soil is more exposed and doesn't provide habitat
Even more relevant would be tips and hacks from NNSW and surrounds