Posted: 18/05/2013 at 19:01
Bookertoo - Provado is a systemic insect killer which is taken up by the plant and makes it toxic to ALL insects, including those we do want as well as those we don't. As well as killing Lilly Beetles, you're also killing bees, etc, because the nectar and pollen will contain the the insecticide. I've stopped using Provado for that very reason. I do use a tea strainer - the spring loaded tea ball one - looks like this.....
Best bit of gardening equipment for capturing Lilly Beetles ever invented!