Back in early spring I bought some potting soil and "refreshed" the soil in my houseplants while repotting them. It wasn't long before the house was invaded with clouds of little gray bugs, barely visible unless they were found floating in a cup of water or in our food. They were everywhere!
I tried yellow glue traps, vinegar traps, soaking the soil with NEEM oil, soaking the soil with a systemic insecticide, and finally, in desparation, bagging every single one of my house plants for two months. The glue traps caught thousands, the NEEM oil killed hundreds of larvae, and bagging my plants gave us two months of gnat-free food and drink.
Yet, still gnats have survived. I just opened the bags on a couple of plants to see if the bagging worked and now gnats are zipping around. Yes, there aren't many but there will be. There will be. If someone has a technique that works, I'm all ears.
