Curious wonder if you fertilized but it's usually a late frost so hold off on the disease treatments.

I know from my mom's house a frost doesn't always 'register'. This year her apples all have apples growing except the 2 closest to her driveway. Cold air got those blossoms but spared the rest. Over the years that 'tiny valley' that funnels a 'cold air stream' has killed other tender plants I've planted in the spring too.

If your fruit and/or vegetables are in a 'sunken' area compared to nearby areas they will have this happen from time to time. e.g. I've noticed most time year round the hollow my mom lives in is 3 - 5 degrees cooler than at the top of the knob. You can actually watch the temperature go down as you drive down the knob into the valley. That's what the call a micro-climate I guess.

This post was edited by AgroCoders on Sat, Jun 7, 14 at 19:52