Paul, the imacloprid is the main ingredient in a brand name tree and shrub treatment. Won't mention the brand name here but it starts with the letter B. It is an annual application that a lot of succulent lovers use to treat their succulents in the fall before bringing them inside to over-winter. I wouldn't use it on indoor plants. I should have explained that a bit more clearly. I was wondering how often bonide needs to be applied since I've never used it.