Online Phenology Models and Degree-day Calculator
Japanese beetle [multiple crops]
invasive insect model of APHIS data

Output from invasive insect degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: Japanese beetle [multiple crops] Type: invasive insect Model source/other links: APHIS data Calculation method: single sine Lower threshold: 50 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: incomplete based on trapping data several years Region of known use: potential for use in US ==============================EVENTS TABLE================================ 1. 900 DDs after Jan 1: Place traps to monitor adult activity 2. 970 DDs after Jan 1: Approx. 2% adult emerg. 3. 1050 DDs after Jan 1: Approx. 10% dult emerge 4. 1600 DDs after Jan 1: Approx. 50% or peak adult emerge 5. 2080 DDs after Jan 1: Approx. 90% adult emerge 6. 2150 DDs after Jan 1: Approx. end of main period of adult activity 7. 2790 DDs after Jan 1: Approx. last adults trapped ==============================MODEL OUTPUT================================ Weather station: 1000 none selected mn day max min precip DD50 CUMDD50 event -- --- ----- ----- ------ ---- ------- -------