Ric, I see them in May,June and maybe even early July. The first time I see them they are about 1 inch long, when they leave maybe 3 inches long and they stay very slim. They ususally stay around 2 weeks at a time here in NE MS, Guntown, MS. This is about how long it takes them to eat a big White Milkweed plant. If I move them to another plant before they run out of leaves, they stay about the same on this one. Sometime in their 3rd week or so, they just disappear. No matter if I have 20 or 5 on the plant, I go out one morning and they are gone.
Rita, They are actually an orangish brown, more lite orange. I need to check out to see which mildweed plant I have. It's a wildflower, so I'm not sure. I'll check. I've never seen them on another plant at this stage.
Margaret, I checked out the Tobacco bud worm and it's close, but mine doesn't have hair, nor strips, and the head is different. I saw where TBW change color but mine are always this orangish color eating a green plant.
Now, I'm going to make sure I've stated the right plant. Be back shortly, Mona
