Q: My squash needs your help! Where can I buy sabadilla dust for squash bugs and borers?
A: Sabadilla dust is derived from the seeds of Schoenocaulon officinale, a South American lily. It was once sold as a botanical insecticide but to my knowledge it is no longer available. (Interesting note: It was also sold as “Sneezing Powder”, used by practical jokers!) Try regular sprays with spinosad (Captain Jacks Dead Bug Brew, etc) or carbaryl (Sevin, etc) on the leaves and stem of your plants.