Island Apple IPM
The tree with winter moth eggs hatching is only about 2 miles from Narragansett Beach, so not one of our warmer locations in Rhode Island. I think that eggs are probably hatching in Bristol and Portsmouth as well warmer locations in the state. Little Compton may be a few days behind, but I was over there on Friday and surprised at how similar plant stages were to the 'main land'.
Today I looked at some McIntosh apple trees and they are still not yet at the 'green tip' stage, but probably will be tomorrow.
So if you want to protect buds from winter moth larvae I suggest you
spray very soon. Most insecticides control winter moth larvae very well.
As I've said before, most landscape trees don't need to be sprayed so
early and can wait for the buds to open.