These photos are buds on a May pride peach from earlier today. Does anyone have any idea how many days until they might break? I'm hoping to get one more dormant spray in. I missed spraying last dormant season and maybe even the year before and I had terrible leaf curl on this as well as a few other trees last spring/summer. Due to the weather and my poor timing I only got one good spray in and it was maybe 48 hours before it rained. I would like to spray Captain Jack's copper fungicide combined with Monterey Horticultural oil and I should get a good four days in before it rains. I won't be able to spray until Friday after work and it's going to be in the high 50s low 60s for the next week or so. Please let me know your thoughts, if any.

I can't really tell you but I suspect bud break will be earlier this year (your tree is in bud swell, bud brake will show some pink) - its just been so warm this winter. The best opportunity to control Peach Leaf Curl is in fall and winter but you have one more chance - this spray will be less effective as the leaf curl spores are already at work (note the red areas on the twigs). Now its time for delayed-dormant spray when you should be using a horticultural spray and copper sulfate with a pesticide to get those overwintering bugs.

My weather forecast is for rain Wednesday and then dry until next Tuesday. I think if you have 48 hours of dry weather, the spray will work.

All my deco cherry trees are now in bud and in the last week temps from -12F - high 40'sF
The cherry trees have always leafed out and bloomed in cold temps before but never had the minus colder temps before. The sour cherry trees no buds yet.

But during last year we had an April ice storm, all the trees encased in ice, the sour cherry trees had lower than normal bloom but no cherries .
And… the same April ice storm …The flowers all bloomed out on the weeping cherry decorative trees that were encased in ice. All blooms fell at once after the thaw.
It's a roll of the dice a wait a see…