Problem can include that mites and many other insects will be on the tops of your shoes, on socks, on the lower part of the pant legs and just about any clothes so wiping the bottoms of your shoes off is not going to be of much help. The mites are very light and could just float on the mildest of air currents so they can be inside the shed as soon as the door is open.My grow space is in a shed in my yard so I have to walk through grass to get to it. I had none when i was inside but lost space due to little chitlins. Was thinking about getting a sticky door mat so when i walk in anything on my shoes gets stuck. My shed is in a horrible spot lol damn it
Just treating the plants will not be enough. Many people also recommend spraying the walls, ceiling and floor to get the ones that have fallen off the plant or just wandered away. Something like that would be hard to do unless the walls of the shed have been finished off and painted. Otherwise there will be so many small crevices and cracks that the mites can be hiding in.
Might want to consider putting a bit of a flower or herb garden near the door of the shed and along the outside walls. Picking 'companion' plants that naturally repel mites and other insects, Rosemary is a good one, and planting those could help a lot.
Nope.@SmokingWings did you get the spreader coat and the z7 when you did the nuke em?
Whatever you choose to battle the insects keep using it until they are gone. Then begin a preventative maintenance schedule. It is often mentioned to spray once a week just to maintain that layer of protection.