Gardeners' World Web User
14/07/2007 at 22:07
We have been inundated with the lily beetle here in Ontario, Canada and it is spreading. We have tried spraying with hort. oil as it causes them not to breathe. They are picked off and squashed also, but they are soon back again. It is the larvae they leave that is the problem. This year, like others, I am cutting them right down after flowering, if the buds are not already ruined, and will spray the ground where they live. One lives in hope.