Hi,
Does anyone have a home formula for insect spray for indoor & outdoor use. Currently I am using "Bug-B-Gone", a commercial product from Defender. But it's getting quite expensive!
Active constituent in this is 0.03g/L of BIFETHRIN.
There must be a home made brew out there somewhere!

Thanks
Craig

Simple mild dish detergent mixed with water so it feels soapy enough to do dishes, or 9 parts water to one part Isopropyl alcohol/rubbing alcohol or stronger, so you might want to cover the soil with something like a plastic bag.
There is also those yellow sticky traps you hang around the plants that work like fly paper.