The University of Arizona

College of Agriculture and Life Sciences

Improving Lives, Communities and the Economy

Heat Units

Author: 
Brown, Paul W.
Publication Date: 
July 2013
Publication Number: 
AZ1602
Pages: 
7 pp.
Abstract or Description: 
Environmental temperatures impact the development of biological organisms that do not regulate their internal temperature, including crops and crop pests. Heat unit systems quantify the thermal environment of these organisms and are commonly used in phenology models - models that relate organism growth and development to local weather/climate conditions. This bulletin provides an overview of the heat unit concept and the two methods commonly used to compute heat units, then provides examples of how heat units can assist with the management of agricultural production systems in Arizona and concludes with a discussion on how to obtain local heat unit information.
Language: 
English
Publisher: 
College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)
Contributor: 
Relation: 
University of Arizona Cooperative Extension Publication AZ1602
Keyword: 
heat units
insect control
pests
Type: 
Text
Subject Category: 
Insects and Pest Management
Plant Production/Crops
Short URL: http://uacals.org/547