Eggshells for slugs, snails, caterpillars
I have found that crushing eggshells and making a border of 'em around individual plants will deter slug'n'snails.....they don't like to cross the jaggy surface. Eggshells in large pieces around your brassica-family vegetables (cabbage, cauliflowers, buk choy etc) deters cabbage butterflies...they will not lay their eggs, as they think another cabbage butterfly is there already. However, if it is too late, and you have caterpillars on your cabbages already...pick off all you can, and put 'em in a blender with some water, and spray 'em back onto the cabbages. You will not get any more eggs laid there. Of course..remember to wash your cabbages well before use! Cheers.. Bev