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.
