Systems Organic Management Suppresses Cabbageworm Outbreaks: Evidence from 4 Long-term Organic Farms

Organic Agriculture June 21, 2019 Print Friendly and PDF

This webinar was recorded on January 13, 2015. Watch it on YouTube at

About the Webinar

Imported cabbageworm, vegetable loopers, and diamondback moths can be serious pests of brassicas and other crops. Using many years of information from four farms, we have characterized successful whole-farm management systems. Our analysis suggests paths to success for other farms who have, or anticipate, cabbageworm outbreaks.

Slides from the webinar as a pdf file

About the Presenters

Jake Asplund is a Ph.D. student in entomology at Washington State University. His work focuses on examining arthropod community interactions in agriculture.

Doug O'Brien owns and operates Doug O’Brien Agricultural Consulting, providing on-site technical advice, field monitoring, and research for clients involved in fresh produce growing, harvesting, cooling and marketing. He is an adjunct professor at Cabrillo College, in Santa Cruz, CA and teaches classes in organic farming. Previously, Doug was a co-owner of an organic produce brokerage company, a crop production manager, and an assistant farm advisor.


System Requirements

PC-based attendees
Required: Windows® 7, Vista, XP or 2003 Server
Macintosh®-based attendees
Required: Mac OS® X 10.6 or newer
Mobile attendees
Required: iPhone®, iPad®, Android™ phone or Android tablet

Java needs to be installed and working on your computer for you to be able to join the webinar. If you have concerns, go to prior to joining the webinar. If you are running Mac OS X 10.6 with Safari, please be sure to test your Java. If it isn't working, please try Firefox ( or Chrome ( The webinar program will require you to download software before connecting you to the webinar, so if you don't have administrative rights on your computer, you may not be able to do this, although you can listen in by phone. If you'd like to test your connection to gotowebinar in advance, go here.

This is an eOrganic article and was reviewed for compliance with National Organic Program regulations by members of the eOrganic community. Always check with your organic certification agency before adopting new practices or using new materials. For more information, refer to eOrganic's articles on organic certification.

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.