Insecticidal Soap?? Fuck buying it, lol.
But do buy this instead
cost's a buck @ wally world. Cut off 1" from the bar, cut/shave that piece into a quart of boiling water. Mix. That makes a CONCENTRATE. Then 1 teaspoon of the concentrate to a quart of water in the sprayer. Kills almost any bug on contact. Doesn't kill all worms/catipillars, so use some BT also.That one bar of soap for a buck will make the equivalent of at least 100 bottles, of the ready to use insecticidal soaps you get at Home Dopey.
Go easy at first, too strong will crinkle some leaves. I have ants farming aphids on my okra, tomato fruit worms drilling holes...........this stopped it. Sevin did nothing, neither did borax or BT. This is one shot and done usually...........but you got to hit them. Admittedly there is some satisfaction/fun shooting at these bugs
Stinkbugs and squash bugs don't like it, lol.