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Allegheny County (Airport data)

Apple Carbohydrate Thinning Model for Pittsburgh Airport.

Green Tip: April 13, 2018
Full Bloom: May 6, 2018

DateMax Temp (°F)Min Temp (°F)Solar Rad (MJ/m2)ProductionDemandBalance4-Day Avg BalanceThinning Recommendation
4-Jun 72 59 17.20 81.83 67.57 14.25 21.33 Increase chemical thinner rate by 30%
5-Jun 72 55 12.70 65.26 65.73 -0.48 15.35 Increase chemical thinner rate by 15%
6-Jun 63 46 11.60 67.99 47.00 20.98 10.68 Increase chemical thinner rate by 15%
7-Jun 75 50 26.50 118.79 68.24 50.55 -11.39 Apply standard chemical thinner rate
8-Jun 81 61 19.40 83.35 93.02 -9.67 -35.50 Decrease chemical thinner rate by 15%
9-Jun 79 64 18.30 78.26 97.42 -19.16 -36.69 Decrease chemical thinner rate by 15%
10-Jun 80 63 8.80 33.09 100.38 -67.29 -38.60 Decrease chemical thinner rate by 15%
11-Jun 74 57 8.40 40.02 85.87 -45.86 -21.49 Decrease chemical thinner rate by 15%
12-Jun 79 59 18.10 84.00 98.46 -14.46 -9.58 Apply standard chemical thinner rate
13-Jun 81 63 18.60 81.07 107.86 -26.78 -4.82 Apply standard chemical thinner rate
14-Jun 80 60 23.90 103.06 101.90 1.15 -0.90 Apply standard chemical thinner rate
15-Jun 79 59 22.40 100.77 99.01 1.76 -
16-Jun 81 59 24.80 106.75 102.18 4.57 -
17-Jun 85 62 25.60 101.73 112.83 -11.09 -

Note date printed 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
  • Professor of Horticulture
Email:
Phone: 814-863-6163