Went out this morning and noticed my Disocactus cuttings have been visited by something…Don't know what…Any ideas? Seems to have "chewed" some holes into the leaves, and appears to have left some residue? I thought it may have been dirt, but it doesn't 'brush'off. I don't know if it's related, but I also have a Geranium nearby that has been 'chewed'. Have you seen anything like it before? Any ideas are appreciated! I'm at a loss….