I had an epiphany
! It’s so simple I can’t believe It hadn’t occurred to me in all the years I’ve been using Bti
— mosquito larvae and fungus gnat control — in the water.
The other day, I was watering my indoor plants with Mosquito-bits (Bti
) infused water to control the fungus gnats larvae and giving them their daily morning thorough misting of filtered water with the spray bottle. There had been an upsurge in the fungus gnats since weather warmed up, and they were swarming all over the plants and potting mix surfaces. ...I was wishing I had something to get them midair when I could see them so clearly, but I was pouring effective control against them in a stream and spraying totally useless plain water in the air where they were flying....
Then light bulb moment!!!
... I put a small amount of mosquito bits in the spray bottle, made sure the sprayer tube had the filter end on the inside and put it in, shook and let infuse for a while, then proceeded to spray everything with the Bti treated water
— I sprayed the gnats in the air, the potting mix surfaces, surface of the plants, especially stems near the bottom, but top surfaces, too... outside surface of containers and rims, shelf surfaces... everywhere that the gnats would come in contact.
You see — Bti
is a bacteria specific to mosquitoes and fungus gnats. I just have to infect the gnats — how many times have you watched those anti-bacterial soap and germicidal lotion commercials highlighting the door knobs, elevator buttons, toilet seats where there are germs you don’t want to touch? With some luck, they will pass it on to their eggs and infect the larvae as well. The bacteria needs moisture to stay alive but presumably will live on once inside the organism.
— 2 days later and all those gnats are practically gone. I think the rare ones I see flying are the ones that had been pupae and hatched out. I’ll spray with the Bti
infused water a couple more times to break their life cycle and that should be that.