The buds are just starting to swell. Our little cold spell was welcome earlier in the month; I think it slowed things down enough to avoid the inevitable frosts in late April and early May. I still think I may have bud burst earlier than last year. Looking at the current forecasts, I would expect bud burst to occur about or shortly after May 1.
I spent much of Monday (April 16) applying my dormant spray of Lime Sulfur. Conditions were excellent. Almost no wind, with temperatures in the upper 50's. The Lime Sulfur is an Organic spray used to control anthracnose and overwintering diseases. Vines are looking very healthy coming out of winter.