Picture posting is enabled for all :)
davy - I feel that you may have been lucky?I do not see detergent as a useful killer of eggs or caterpillars. Especially when they are always on the uderside of leaves.Just as quick with finger & thumb?
My dilemma - would ladybirds lay eggs on brassica's close to a food source and if they do how on earth do I tell them apart from cabbage whites eggs?
I too have watched cabbage whites fly through the 3/4 inch mesh which is sold as protection against butterflies and in future will use a 1/4 inch pond mesh for this job. We have hundreds flying round our lottie on the Sussex coast at the moment. :o