don’t kill these guys if you have them, don’t drench your soil or soilless mix with pesticides, don’t use diatomaceous earth to cover the top soil either because these guys will do the job for free. hypoaspis miles, a beneficial guy all the way. scavengers, so they will eat any pest that spends at least one phase of its lifecycle in soil (thrips and fungus gnats are the obvious pests targeted by these beauties). you may even see them roaming on the lower leaves of small plants or on seedlings too, perfectly fine. they will never ever damage your plants and kill those only which will cause damage. love these mites.