Answers to your questions about gardening, energy, homesteading and other sustainable living topics.
Something is eating holes in my new broccoli plants. Should I be worried, and if so, what should I do?
If you look very closely on the undersides of the leaves, especially along the leaf veins, you will spot the culprits — green worms (see photo) that have hatched from eggs laid by white cabbage butterflies and their cousins. Beneficial insects and birds will reduce the number of worms but broccoli, cabbage and related brassicas often need some human help to fend off these fast-growing butterfly larvae. Our recent online poll shows which methods are most popular:
The Bt product is a good choice; it's made from a bacteria and it only kills the worms that eat it; it won’t harm other insects, pets or humans. Johnny’s Selected Seeds offers a brand (Dipel
— Cheryl Long, editor in chief