Listen to the full show:
June 18, 2011 — They look like caterpillars or slugs, but leaf-chewing sawflies are actually baby wasps. Mike McGrath reveals how to protect your roses from this unusual foe. Plus your fabulous phone calls.
My roses are being decimated by little green worms. Some new branches have no leaves left at all. After a bit of research I found out they are sawfly larvae; I can’t find any mention of them on your site. Other websites suggest wildly different ways of dealing with them; and some say that they will eventually go away on their own (as flies, I assume). But will there be anything left of my roses at that point? Get the answer »