Online Phenology Models and Degree-day Calculator
eggsimmatureadult
Helicoverpa armigera [cotton, corn, others]
invasive insect model of OSU IPPC model analysis


Output from uspest.org/wea invasive insect degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: Helicoverpa armigera [cotton, corn, others] Type: invasive insect Model source/other links: OSU IPPC model analysis Calculation method: single sine Lower threshold: 51 degrees Fahrenheit Upper threshold: 100 degrees Fahrenheit Directions for starting/BIOFIX: calendar date Starting/BIOFIX date: 1 1 No ending date, set to: default date 12 31 Model validation status: vers. 1.1 Region of known use: Dev. for 48-state US ==============================EVENTS TABLE================================ 1. 432 DDs after Jan 1: First flight of OW gen. adults (OW as pupae) in pheromone traps 2. 1024 DDs after Jan 1: OW gen. peak flight 3. 1450 DDs after Jan 1: End OW gen. flight, 1st gen. peak larvae 4. 1521 DDs after Jan 1: 1st gen. first flight 5. 2113 DDs after Jan 1: 1st gen. peak flight 6. 2543 DDs after Jan 1: 2nd gen. peak larvae and first flight; expect overlapping generations 7. 3202 DDs after Jan 1: 2nd gen. peak flight 8. 3698 DDs after Jan 1: 3rd gen. first flight 9. 4290 DDs after Jan 1: 3rd gen. peak flight 10. 4787 DDs after Jan 1: 4th gen. first flight 11. 5379 DDs after Jan 1: 4th gen. peak flight 12. 6468 DDs after Jan 1: 5th gen. peak flight 13. 7557 DDs after Jan 1: 6th gen peak flight ==============================MODEL OUTPUT================================ Weather station: 1000 none selected mn day max min precip DD51 CUMDD51 event -- --- ----- ----- ------ ---- ------- -------