Disease Severity and Insect Defoliation Training Tool Released

July 24, 2020 10:53 AM
Blog Post

Crop scouts and field researchers now have a new tool at their disposal to help correctly estimate disease severity and insect defoliation in field crops. The new online tool has been created by the Crop Protection Network and can be found at https://severity.cropprotectionnetwork.org. ­

This web tool will help scouts and researchers hone their assessment skills to accurately estimate the amount of a leaf covered by disease lesions and the amount of defoliation caused by insect pests.

Using expert information and interactive activities, the new tool presents several common diseases, along with a corresponding visual trainer and self-practice opportunities for assessing injury caused by each disease. 

Eyespot lesions on con leaf from disease severity training tool
This screenshot of the web tool shows eyespot lesions covering approximately 20% of a corn leaf. The new web tool from the Crop Protection Network helps to train crop scouts and researchers how to more accurately estimate defoliation and lesion severity on field crops.

Other online tools and resources are available from the Crop Protection Network, including national disease loss reports and the ability to obtain continuing education credits for Certified Crop Advisors.  

The Crop Protection Network (CPN) is a multi-state and international collaboration of university and provincial extension specialists, and public and private professionals who provide unbiased, research-based information to farmers and agricultural personnel. The goal of CPN is to communicate relevant information that will help professionals identify and manage field crop diseases and other crop production/protection issues.

Authors: 

Daren Mueller Associate Professor

Dr. Daren Mueller is an associate professor and extension plant pathologist at Iowa State University. He is also the coordinator of the Iowa State University Integrated Pest Management (IPM) program. Dr. Mueller earned his bachelor's degree from the Univ...

Adam Sisson Extension Program Specialist IV

Adam Sisson is an extension specialist with the Iowa State University Integrated Pest Management (IPM) program and a Certified Crop Adviser. Sisson focuses on the development of publications and other educational resources for farmers, agribusi...