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Allegheny County (Airport data)

Apple Carbohydrate Thinning Model for Pittsburgh Airport.

Green Tip: March 24
Full Bloom: April 16

DateMax Temp (°F)Min Temp (°F)Solar Rad (Mj/m2)ProductionDemandDaily Balance4-Day Avg. BalanceThinning Recommendation
26-May 67 57 10.1 53.17 77.76 -24.59 -18.33 Apply standard chemical thinner rate
27-May 72 55 9.4 49.28 82.18 -32.90 -13.27 Apply standard chemical thinner rate
28-May 79 55 14.6 73.61 92.11 -18.50 -1.91 Apply standard chemical thinner rate
29-May 78 60 22.7 100.81 98.15 2.65 12.77 Increase chemical thinner rate by 30%
30-May 76 60 19.2 91.08 95.44 -4.35 10.45 Increase chemical thinner rate by 30%
31-May 68 55 17.0 90.36 77.82 12.54 4.28 Increase chemical thinner rate by 30%
1-Jun 70 51 23.6 115.56 75.31 40.25 5.33 Increase chemical thinner rate by 30%
2-Jun 74 54 14.3 78.44 85.10 -6.66 1.65 Increase chemical thinner rate by 30%
3-Jun 72 58 10.7 58.61 87.60 -28.99 -
4-Jun 72 54 18.7 98.68 81.98 16.70 -
5-Jun 69 52 18.6 100.64 75.08 25.55 -

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