Apple Carbohydrate Thinning Model for Pittsburgh Airport and McDonald, PA

Pittsburgh Airport

Green Tip: March 24, 2020
Full Bloom: May 4, 2020

Date Max Temp (°F) Min Temp (°F) Solar Rad (MJ/m2) Production Demand Balance 4-Day Avg Balance Thinning Recommendation
5-Jun 75 63 5.30 19.65 94.61 -74.96 -5.88 Apply standard chemical thinner rate
6-Jun 83 68 25.10 101.45 112.19 -10.74 8.94 Increase chemical thinner rate by 15%
7-Jun 76 56 27.70 125.07 86.73 38.33 1.67 Increase chemical thinner rate by 15%
8-Jun 82 52 23.50 112.99 89.13 23.86 -2.32 Apply standard chemical thinner rate
9-Jun 91 62 24.40 98.35 114.01 -15.67 -1.29 Apply standard chemical thinner rate
10-Jun 87 62 13.90 68.72 108.57 -39.85 13.00 Increase chemical thinner rate by 15%
11-Jun 80 60 25.80 118.78 96.41 22.37 33.51 Increase chemical thinner rate by 30%
12-Jun 79 57 24.50 118.77 90.77 28.00 -
13-Jun 71 51 21.40 115.80 74.32 41.48 -
14-Jun 70 52 21.70 117.26 75.08 42.18

McDonald, PA

Green Tip: March 27, 2020
Full Bloom: April 28, 2020

Date Max Temp (°F) Min Temp (°F) Solar Rad (MJ/m2) Production Demand Balance 4-Day Avg Balance Thinning Recommendation
5-Jun 76 61 9.40 46.92 93.72 -46.80 6.43 Increase chemical rate by 15%
6-Jun 85 61 24.30 100.28 106.57 -6.29 13.31 Increase chemical rate by 15%
7-Jun 78 48 25.60 120.29 78.29 42.00 4.94 Increase chemical rate by 15%
8-Jun 83 44 24.60 117.26 80.44 36.82 -0.29 Apply standard chemical thinner rate
9-Jun 91 62 24.40 94.93 114.22 -19.29 -3.38 Apply standard chemical thinner rate
10-Jun 87 61 14.10 67.60 107.39 -39.78 11.46 Increase chemical rate by 15%
11-Jun 79 60 25.70 116.28 95.20 21.08 31.78 Increase chemical rate by 30%
12-Jun 79 57 24.40 115.57 91.07 24.49 -
13-Jun 71 51 21.40 113.48 73.42 40.06 -
14-Jun 70 52 21.70 114.78 73.29 41.40

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