Share

Adams County

Apple Carbohydrate Thinning Model for Biglerville, Piney Mtn, and York Springs.

Biglerville

Green tip: March 25
Full bloom: April 17

DateMax Temp (°F)Min Temp (°F)Solar Rad (Mj/m2)ProductionDemandDaily Balance4-Day Avg. BalanceThinning Recommendation
26-May 68 57 12.1 63.94 79.35 -15.41 -34.94 Decrease Chemical Thinner Rate by 15%
27-May 70 53 7.3 37.87 77.03 -39.16 -42.47 Decrease Chemical Thinner Rate by 30%
28-May 69 58 6.8 31.95 82.69 -50.73 -31.50 Decrease chemical thinner rate by 15%
29-May 76 61 12.6 61.66 96.15 -34.48 -10.08 Apply standard chemical thinner rate
30-May 70 59 7.8 39.34 84.86 -45.51 -3.18 Apply standard chemical thinner rate
31-May 75 58 19.7 96.01 91.29 4.72 4.29 Increase chemical thinner rate by 30%
1-Jun 74 53 25.2 118.22 83.28 34.93 6.85 Increase chemical thinner rate by 30%
2-Jun 78 56 16.8 86.22 93.09 -6.87 5.54 Increase chemical thinner rate by 30%
3-Jun 74 61 15.4 79.06 94.67 -15.61 -
4-Jun 72 58 20.4 102.57 87.61 14.96 -
5-Jun 68 56 21.5 108.99 79.29 29.69 -

Piney Mtn.

Green tip: March 27
Full bloom: April 17

DateMax Temp (°F)Min Temp (°F)Solar Rad (Mj/m2)ProductionDemandDaily Balance4-Day Avg. BalanceThinning Recommendation
26-May 65 56 11.1 72.43 73.57 -1.13 -5.99 Apply standard chemical thinner rate
27-May 66 51 7.2 50.98 69.03 -18.05 -10.95 Apply standard chemical thinner rate
28-May 66 54 8.0 56.31 72.64 -16.33 -1.37 Apply standard chemical thinner rate
29-May 76 60 18.8 104.92 93.39 11.53 15.81 Increase chemical thinner rate by 30%
30-May 67 58 8.6 59.13 80.10 -20.97 15.91 Increase chemical thinner rate by 30%
31-May 72 59 19.2 108.58 88.29 20.30 22.94 Increase chemical thinner rate by 30%
1-Jun 71 52 25.3 130.87 78.48 52.38 27.12 Increase chemical thinner rate by 30%
2-Jun 74 56 16.5 99.54 87.59 11.94 25.97 Increase chemical thinner rate by 30%
3-Jun 71 60 15.9 96.28 89.13 7.15 -
4-Jun 68 55 20.5 116.22 79.22 37.00 -
5-Jun 64 53 21.4 119.58 71.81 47.77 -

York Springs

Green tip: March 25
Full bloom: April 19

DateMax Temp (°F)Min Temp (°F)Solar Rad (Mj/m2)ProductionDemandDaily Balance4-Day Avg. BalanceThinning Recommendation
26-May 70 55 7.2 50.37 79.47 -29.11 -48.59 Decrease chemical thinner rate by 30%
27-May 69 51 4.5 31.64 74.53 -42.89 -49.47 Decrease chemical thinner rate by 30%
28-May 71 56 4.3 28.39 83.38 -54.99 -34.03 Decrease chemical thinner rate by 15%
29-May 75 60 4.3 26.02 93.38 -67.36 -8.59 Apply standard chemical thinner rate
30-May 69 58 7.2 50.62 83.27 -32.65 10.44 Increase chemical thinner rate by 30%
31-May 75 58 19.5 110.54 91.66 18.87 18.34 Increase chemical thinner rate by 30%
1-Jun 74 53 25.2 131.08 84.31 46.77 20.55 Increase chemical thinner rate by 30%
2-Jun 77 55 16.4 99.71 90.95 8.75 18.23 Increase chemical thinner rate by 30%
3-Jun 74 61 15.4 94.06 95.08 -1.02 -
4-Jun 72 58 20.7 116.67 88.98 27.69 -
5-Jun 69 56 21.5 120.33 82.83 37.51

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