Online Phenology Models and Degree-day Calculator
eggsimmaturedamageadult
lambsquarter, CROPTIME models
weed model of CROPTIME weed model, Croptime project


Output from uspest.org/wea weed degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: lambsquarter, CROPTIME models Type: weed Model source/other links: CROPTIME weed model, Croptime project Calculation method: single sine Lower threshold: 42 degrees Fahrenheit Upper threshold: 95 degrees Fahrenheit Directions for starting/BIOFIX: first emergence of cotyledon Starting/BIOFIX date: 6 10 Ending date: 7 0 Model validation status: research model - not yet validated Region of known use: W. OR ==============================EVENTS TABLE================================ 1. 1 DDs after cotyledon: Cotyledon present 2. 75 DDs after cotyledon: 2 leaves present 3. 173 DDs after cotyledon: 4 leaves present 4. 273 DDs after cotyledon: 6 leaves present 5. 596 DDs after cotyledon: First infloresc. 6. 1360 DDs after cotyledon: Lower 95% CI first viable seed 7. 1462 DDs after cotyledon: Average first viable seed 8. 1564 DDs after cotyledon: Upper 95% CI first viable seed ==============================MODEL OUTPUT================================ Weather station: 2017 E4431 APRSWXNET EW4431 Mesa AZ Lat33.4472 Long:-111.8081 Elev:1260 mn day max min precip DD42 CUMDD42 event -- --- ----- ----- ------ ---- ------- ------- 6 10 102.00 69.00 0.00 42.10 42.1 * START * Cotyledon present 6 11 99.00 71.00 0.00 42.35 84.4 2 leaves present 6 12 93.00 65.00 0.00 37.00 121.4 6 13 97.00 58.00 0.00 35.31 156.8 6 14 104.00 61.00 0.00 38.71 195.5 4 leaves present 6 15 109.00 68.00 0.00 42.89 238.4 6 16 109.00 70.00 0.00 43.79 282.2 6 leaves present 6 17 110.00 68.00 0.00 43.04 325.2 6 18 112.00 73.00 0.00 45.49 370.7 6 19 117.00 76.00 0.00 47.21 417.9 6 20 119.00 79.00 0.00 48.51 466.4 6 21 116.00 85.00 0.00 50.50 516.9 6 22 112.00 81.00 0.00 48.79 565.7 6 23 111.00 80.00 0.00 48.31 614.0 First infloresc. 6 24 115.00 77.00 0.00 47.44 661.5 6 25 115.00 86.00 0.00 50.80 712.3 6 26 110.00 82.00 0.00 49.03 761.3 6 27 109.00 81.00 0.00 48.54 809.8 6 28 109.00 75.00 0.00 46.00 855.8 6 29 108.00 75.00 0.00 45.88 901.7 6 30 110.00 77.00 0.00 46.98 948.7 Forecast using: 1910 E4431 PRISM_rev1_4km 2007-2016 AVERAGES Lat33.4472 Long-111.8081 DD50
lambsquarter CROPTIME weed model
Location: 2017 E4431 EW4431 Mesa AZ
1910 E4431 PRISM_rev1_4km 2007-2016 AVERAGES
DateDDsEvent
 6-10-17 42Cotyledon present
 6-11-17 842 leaves present
 6-14-17 1954 leaves present
 6-16-17 2826 leaves present
 6-23-17 614First infloresc.
 3-16-17 1389Lower 95% CI first viable seed
 3-18-17 1463Average first viable seed
 3-21-17 1577Upper 95% CI first viable seed
degree-day graph of lambsquarter CROPTIME weed model