Apple Carbohydrate Thinning Model for Lake City, PA

Green tip: April 10, 2020
Bloom: May 15, 2020

Date Max Temp (°F) Min Temp (°F) Solar Rad (MJ/m2) Production Demand Balance 4-Day Avg Balance Thinning Recommendation
26-May 90 70 33.40 60.74 144.48 -83.73 -81.27 Do not thin (many fruits will fall off naturally)
27-May 83 68 24.20 61.15 137.09 -75.94 -54.86 Decrease chemical thinner rate by 30%
28-May 77 65 9.00 28.28 123.11 -94.83 -25.79 Decrease chemical thinner rate by 15%
29-May 75 57 8.60 33.49 104.08 -70.59 6.09 Increase chemical thinner rate by 15%
30-May 62 45 19.90 81.67 59.76 21.91 19.71 Increase chemical thinner rate by 15%
31-May 58 46 26.10 96.39 56.05 40.35 5.41 Increase chemical thinner rate by 15%
1-Jun 64 45 25.60 99.12 66.42 32.70 -10.02 Apply standard chemical thinner rate
2-Jun 67 53 15.90 71.68 87.80 -16.13
3-Jun 74 58 18.10 75.94 111.21 -35.27
4-Jun 72 59 21.10 87.56 108.93 -21.37

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