Tig
Veteran Member
About ten tears ago I came across a recipe for an all natural bug killer. The main ingredients were water, amonia and dish soap. After I was done with the caterpillars on my bushes I sprayed down the Cavalier engine and later hosed it off. I'm not sure if this is too harsh for rubber etc but it works great and I have never had a problem. It worked great on the caterpillars too. 