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Diamondback Moth: Lessons from History and Future Solutions

Effective DBM Control Series Part 1.

Presented by the Grimm Family Organic Center and Western Growers Science.

1 DPR CEU “Other” credit
1 CCA CEU “Integrated Pest Management” credit

Webinar Details:
Thursday, March 27, 2025

11:00 AM to 12:30 PM PT
Online / Zoom

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WG Science

About This Webinar

Join us for a discussion about Diamondback Moth (DBM), a significant pest of brassica, and what future options show promise for control of this species. In this webinar, we will explore the history of control options development for Codling Moth, a major pest of apples, assess lessons that can be applied to DBM in cole crops, and introduce novel practices and tools that show promise to growers. 

Dr. Matt Grieshop, Director of the Grimm Family Center for Organic Production and Research and entomologist, will present on using Codling Moth control development as a model for DBM control, identifying the barriers and challenges with these species and the role of biological programs to address these pests.

Dr. Ian Grettenberger, Assistant Specialist in CE Entomology at the University of California Davis and entomologist, will present on novel solutions to address DBM and the latest research on biocontrol, farming practices and pest control product development.

Arelne Haffa
Dr. Arlene Haffa
Professor, Department of Biology & Chemistry
CSU Monterey Bay
Dr. Arlene Haffa is a Professor in the Department of Biology & Chemistry at CSU Monterey Bay. She earned her doctorate at Arizona State University where she used laser physics to study electron transfer in photosynthetic bacteria. Her postdoctoral studies were done at the Monterey Bay Aquarium Research Institute (MBARI) in Moss Landing. She taught in the chemistry department at the University of Wisconsin-Oshkosh for four years before joining the faculty at CSU Monterey Bay in 2011.
Cole-Smith-headshot
Cole Smith
Staff Research Associate
University of California, Davis and Agriculture and Natural Resources
Cole is a Staff Research Associate with University of California, Davis and Agriculture and Natural Resources. His primary research area is sustainable nutrient management and soil fertility. His Ph.D. research has focused on the use of organic amendments within vegetable cropping agroecosystems of the California’s central coast, aiming to quantifying tradeoffs between conservation management and nitrogen fertilizer use. Cole holds a master’s degree from UC Davis in Soil Science & Biogeochemistry and has been with the UC system for 8 years implementing extension-based outreach and education programs to divert organic waste from landfills, improve soil health and promote the adoption of sustainable agricultural practices.

Steve Brazeel Headshot
 
Steve Brazeel
CEO 
Elevated Foods

In 2000, Steve Brazeel founded SunTerra Produce, which has grown from a one-person produce brokerage firm into an industry-leading, full-service platform handling sales, marketing, farming, food safety, harvesting, storage, and distribution activities for specialty crop producers on over 10,000 acres throughout the US and Mexico. Born out of SunTerra‘s participation in the USDA’s ground-breaking Farmers to Families Food Box program, Project FoodBox was launched in 2020. Since the program’s inception, the SunTerra/Project FoodBox teams have delivered over 85 Million pounds of fresh fruits and vegetables to communities in need through its network of food banks, community organizations, and health care plans.

Elevated Foods, founded by Mr. Brazeel in 2020, was recently awarded a $20M grant as part of USDA’s Partnerships for Climate Smart Commodities program. Elevated was formed to bring more profit to farmers by incentivizing the adoption of new technologies & practices and providing technical support to help make them more efficient and resilient.

What is a Codling Moth?

Codling moth (Cydia pomonella), is a major pest for apple orchards, causing sting and deep entry fruit damage. Over the past few decades, significant research and intervention practices have been developed to successfully combat this pest, leveraging the unique biology and life cycle of this Lepidoptera species.

What is a Diamondback Moth?

Diamondback Moth (Plutella xylostella), the single most damaging and problematic pest threatening California’s $1.4B cole crop industry. Serious damage occurs on crowns or growing points of young plants or Brussels sprouts, severely stunting growth. Caterpillars can bore into flower buds or broccoli and cauliflower heads, causing contamination and economic injury. Managing this pest has become increasingly challenging in many areas, and control options are limited due to increasing pesticide resistance and few novel pest control tools becoming available.


Arelne Haffa
Dr. Arlene Haffa
Professor, Department of Biology & Chemistry
CSU Monterey Bay
Dr. Arlene Haffa is a Professor in the Department of Biology & Chemistry at CSU Monterey Bay. She earned her doctorate at Arizona State University where she used laser physics to study electron transfer in photosynthetic bacteria. Her postdoctoral studies were done at the Monterey Bay Aquarium Research Institute (MBARI) in Moss Landing. She taught in the chemistry department at the University of Wisconsin-Oshkosh for four years before joining the faculty at CSU Monterey Bay in 2011.
Cole-Smith-headshot
Cole Smith
Staff Research Associate
University of California, Davis and Agriculture and Natural Resources
Cole is a Staff Research Associate with University of California, Davis and Agriculture and Natural Resources. His primary research area is sustainable nutrient management and soil fertility. His Ph.D. research has focused on the use of organic amendments within vegetable cropping agroecosystems of the California’s central coast, aiming to quantifying tradeoffs between conservation management and nitrogen fertilizer use. Cole holds a master’s degree from UC Davis in Soil Science & Biogeochemistry and has been with the UC system for 8 years implementing extension-based outreach and education programs to divert organic waste from landfills, improve soil health and promote the adoption of sustainable agricultural practices.

Steve Brazeel Headshot
 
Steve Brazeel
CEO 
Elevated Foods

In 2000, Steve Brazeel founded SunTerra Produce, which has grown from a one-person produce brokerage firm into an industry-leading, full-service platform handling sales, marketing, farming, food safety, harvesting, storage, and distribution activities for specialty crop producers on over 10,000 acres throughout the US and Mexico. Born out of SunTerra‘s participation in the USDA’s ground-breaking Farmers to Families Food Box program, Project FoodBox was launched in 2020. Since the program’s inception, the SunTerra/Project FoodBox teams have delivered over 85 Million pounds of fresh fruits and vegetables to communities in need through its network of food banks, community organizations, and health care plans.

Elevated Foods, founded by Mr. Brazeel in 2020, was recently awarded a $20M grant as part of USDA’s Partnerships for Climate Smart Commodities program. Elevated was formed to bring more profit to farmers by incentivizing the adoption of new technologies & practices and providing technical support to help make them more efficient and resilient.

Speakers

Dr. Ian Grettenberger
 
Dr. Ian Grettenberger 
Assistant Specialist in CE Entomology 
University of California Davis

Dr. Grettenberger is the Assistant Specialist in CE Entomology at the University of California Davis . His fields expertise include field and vegetable crops; integrated pest management; applied insect ecology, and biological control of pests. Ian joined UCCE in 2019, as a field and vegetable crops assistant specialist in the Department of Entomology and Nematology at UC Davis. He earned a Ph.D. in entomology from Penn State University and a BS in biology from Western Washington University and is interested in advancing integrated pest management in field and vegetable crops, plant-insect interactions, and applied insect ecology.

Dr. Matt Grieshop
 
Dr. Matt Grieshop
Director
Grimm Family Center for Organic Production and Research

Dr. Matt Grieshop is the founding director of the Grimm Family Center for Organic Production and research at Cal Poly and has worked in the areas of organic and sustainable agriculture for over 20 years. An entomologist by training, he has published numerous papers and extension/trade articles in biological, cultural, behavioral, and chemical pest management. Prior to joining Cal Poly, Grieshop served Michigan State University as the Organic Pest Management Specialist where he taught courses in agroecology, pest management, sustainable agriculture, and environmental science. Matt received his doctorate from Kansas State University, MS from Montana State University, and bachelor’s degree from the University of California, Santa Cruz.

Arelne Haffa
Dr. Arlene Haffa
Professor, Department of Biology & Chemistry
CSU Monterey Bay
Dr. Arlene Haffa is a Professor in the Department of Biology & Chemistry at CSU Monterey Bay. She earned her doctorate at Arizona State University where she used laser physics to study electron transfer in photosynthetic bacteria. Her postdoctoral studies were done at the Monterey Bay Aquarium Research Institute (MBARI) in Moss Landing. She taught in the chemistry department at the University of Wisconsin-Oshkosh for four years before joining the faculty at CSU Monterey Bay in 2011.
Cole-Smith-headshot
Cole Smith
Staff Research Associate
University of California, Davis and Agriculture and Natural Resources
Cole is a Staff Research Associate with University of California, Davis and Agriculture and Natural Resources. His primary research area is sustainable nutrient management and soil fertility. His Ph.D. research has focused on the use of organic amendments within vegetable cropping agroecosystems of the California’s central coast, aiming to quantifying tradeoffs between conservation management and nitrogen fertilizer use. Cole holds a master’s degree from UC Davis in Soil Science & Biogeochemistry and has been with the UC system for 8 years implementing extension-based outreach and education programs to divert organic waste from landfills, improve soil health and promote the adoption of sustainable agricultural practices.

Steve Brazeel Headshot
 
Steve Brazeel
CEO 
Elevated Foods

In 2000, Steve Brazeel founded SunTerra Produce, which has grown from a one-person produce brokerage firm into an industry-leading, full-service platform handling sales, marketing, farming, food safety, harvesting, storage, and distribution activities for specialty crop producers on over 10,000 acres throughout the US and Mexico. Born out of SunTerra‘s participation in the USDA’s ground-breaking Farmers to Families Food Box program, Project FoodBox was launched in 2020. Since the program’s inception, the SunTerra/Project FoodBox teams have delivered over 85 Million pounds of fresh fruits and vegetables to communities in need through its network of food banks, community organizations, and health care plans.

Elevated Foods, founded by Mr. Brazeel in 2020, was recently awarded a $20M grant as part of USDA’s Partnerships for Climate Smart Commodities program. Elevated was formed to bring more profit to farmers by incentivizing the adoption of new technologies & practices and providing technical support to help make them more efficient and resilient.

agtech-karen-ross
Featuring Karen Ross
Secretary of the California Department of Food and Agriculture

KAREN ROSS was appointed Secretary of the California Department of Food and Agriculture on January 9, 2019, by Governor Gavin Newsom. 

In re-appointing Secretary Ross, Governor Newsom cited her unmatched leadership experience in agricultural issues nationally, internationally and in California, in areas including environmental stewardship, climate change adaptation and trade. 

Secretary Ross was initially appointed by Governor Edmund G. Brown Jr. in 2011.

For more information please contact Jeana Cadby

jcadby@wga.com

Copyright © 2025, Western Growers

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Jason_Resnick 2
 
Jason Resnick
Senior Vice President and General Counsel
Western Growers

Jason Resnick joined Western Growers in 2003 and now serves as Senior Vice President and General Counsel. His responsibilities include overseeing the organization’s legal department, trade practices department, H-2A Services division, and corporate governance as Western Growers’ corporate secretary.  Jason provides advice and counsel on various legal, business and policy matters. Jason has primary staff liaison responsibility over the Western Growers Board of Directors, and the WG Executive and Labor Committees.

Click here for Jason Resnick's full biography.