The past 2 years I have had Stink bugs, sometimes called squash bugs that have destroyed my squash plants. Also the dreaded horn worms on my tomato plants. I have searched for an answer to my gardening problems. The only thing I can find is Kaolin Clay. It is also marketed under the name of Surround WP. Does anyone know anything about this? Its suppose to be one of the ingredients in toothpaste and in some makeups. I think orchards use this for the fruit trees to deter ants and worms. You mix 1/4 cup of clay to 1 gallon of water and spray on your plants. It will leave a grey film on the plants and confuse any bug. Any knowledge on this would be so very helpful.