Last NEWA Carbohydrate Model Run: June 1, 2021

The only sites that had a recommendation for today were New Paris, Rock Spring, and Scott Township. All three recommended increasing chemical rates by 30%. The New Paris site also recommended adding oil as a surfactant. There is only a slightly negative balance at any of the sites.

The cold and wet weather over the Memorial Day weekend did not put much of a stress on the trees. According to weather predictions, we should return to more normal weather with highs into the upper 70s and mid-80s towards the end of this week. Unfortunately, fruit size as predicted by the growing degree day model is beyond the stage where the fruit are very responsive.

The MaluSim Carbohydrate Model

Network for Environment and Weather Applications (NEWA)

Apple Carbohydrate Thinning Models for Pennsylvania Counties

• Bedford County
• Centre County
• Lackawanna County