Apple Carbohydrate Thinning Model for Cabot, PA

Green Tip: March 23, 2020
April: May 5, 2020

Date Max Temp (°F) Min Temp (°F) Solar Rad (MJ/m2) Production Demand Balance 4-Day Avg Balance Thinning Recommendation
5-Jun 76 63 9.10 46.42 94.36 -47.94 12.71 Increase chemical thinner rate by 15%
6-Jun 80 61 24.30 107.85 96.58 11.27 24.60 Increase chemical thinner rate by 30%
7-Jun 74 49 23.60 117.03 73.02 44.01 13.46 Increase chemical thinner rate by 15%
8-Jun 81 45 24.90 120.43 76.94 43.49 11.10 Increase chemical thinner rate by 15%
9-Jun 90 59 25.20 104.76 105.14 -0.38 8.71 Increase chemical thinner rate by 15%
10-Jun 87 60 13.50 68.86 102.15 -33.29 20.46 Increase chemical thinner rate by 30%
11-Jun 78 57 25.80 121.54 86.95 34.59 38.10 Increase chemical thinner rate by 30%
12-Jun 78 55 24.40 119.75 85.83 33.93 -
13-Jun 69 49 21.10 115.08 68.48 46.59 -
14-Jun 70 51 19.70 110.29 73.00 37.28

in boldface is the date the model was run and is based on expected temperatures for that specific date and location.

Contact Information

Robert Crassweller, Ph.D.
  • Professor of Horticulture