Someone told me that hedge balls are good for killing bugs. I have not searched for exactly how they can kill bugs or what they have in them that kills bugs.
Recently, I bought some hedge balls (around September; I think some places still have them and the fall time is the time to get them) to see if they can kill bugs. I'm trying to keep them stocked. I also try to keep them up high and out of way of where my animals cannot get them.
I bought my hedge balls at a local supermarket and mine hand out a small info sheet, but I didn't pick one up. If you need some bug killer, try a hedge ball.