I was outside a bit ago inspecting my trees. We're supposed to get a cold front in and possibly more snow so I was worried that the frost might kill the flower buds if they're to far along. While inspecting the Nectarine tree though I found what I believe is the egg sack to a moth or butterfly. (There's an outside chance that it's a praying mantis but I doubt it.) Usually caterpillars are very specific about what they eat. Meaning they'll either eat the flower petals themselves or they'll go for the leaves that emerge with them shortly after. If they eat the leaves I have no problem with this... But if they go after the flower petals I'll be taking action. I want me some Nectarines!