OSU Nursery, Greenhouse, and Christmas Trees News

ODA Continues Efforts to Protect Pollinators from Pesticide Impacts

ODA takes steps to protect pollinators from pesticide impacts

The Oregon Department of Agriculture has announced a series of measures designed to protect bees and other pollinators from exposure to certain pesticide products. ODA is requiring specific label statements restricting use of products containing the active ingredients dinotefuran and imidacloprid while strengthening its outreach and education efforts to pesticide users regarding pollinator protection. The steps were outlined today at a hearing held by the House Interim Committee on Agriculture and Natural Resources.

“In response to this summer’s large bumblebee deaths connected to the use of these pesticide products, our agency has come up with a good and comprehensive plan that we believe will minimize the chances of these incidents from taking place in the future,” says ODA Director Katy Coba. “We take these incidents seriously and we are stepping up both our regulatory and educational efforts.”

As a condition of annual registration for 2014, ODA is requiring an Oregon-specific label statement on dinotefuran and imidacloprid products being sold or distributed in the state that prohibits the application of these products on linden, basswood, or Tilia species. Bee deaths reported this year involved products containing these active ingredients applied to European linden trees. It appears the tree species’ natural toxicity to bumblebees in combination with the pesticide contributed to the deaths. Taking the rare step of requiring an Oregon-specific label statement on pesticide products indicates the importance ODA places on protecting pollinators.

Secondly, ODA Director Coba has sent a letter to the US Environmental Protection Agency (EPA) requesting additional evaluation of these pesticide active ingredients and other neonicotinoids to determine if use limitations on a national basis should be considered.

ODA is also expanding its educational efforts on pollinator protection to licensed pesticide applicators and the general public. For applicators, additional emphasis on pollinator protection will be included in the required testing and re-certification process to become licensed. Outreach to the general public will include information on ODA’s website as well as brochures and other materials distributed through master gardener programs and retail outlets.

In June, ODA adopted a temporary rule that restricted use of 18 pesticide products containing dinotefuran while it continued its investigation of bumblebee deaths in Wilsonville and Hillsboro. That temporary rule will expire next month. Meanwhile, the pesticide use investigations into the pollinator deaths are expected to be completed by mid-December.

ODA’s Pesticide Program has established a website with more information on pollinator protection and the steps the agency is taking.


Media contact: Bruce Pokarney at (503) 986-4559


Christmas Trees Headed to Hawaii

The complete story is available on the ODA's site.

ODA Restricts Use of Certain Dinotefuran Pesticides

ODA’s Pesticide Program has established a website with more information on the dinotefuran restriction, including a list of specific products affected as well as instructions for those who may have purchased these products. Go to <http://oregon.gov/ODA/PEST/Pages/Pollinator.aspx>.

New Bi-lingual Diagnostic Field Guide for Christmas Trees Available for Purchase

This field book has been designed for tree growers and field workers but this will be a friendly tool for general public interested in Christmas tree problems. This is a bilingual production with one side of the booklet in English, and the other side in Spanish, it was printed in a high quality waterproof paper for field-use and quick reference. 

Authors: Chal Landgren, Luisa Santamaria   

Puchase Information

New Eastern Filbert Blight Quarantine now in effect for Washington State

The Washington State Department of Agriculture recently adopted a quarantine for Eastern Filbert Blight. This new quarantine was established to control the fungal plant pathogen Anisogramma anomala that causes Eastern Filbert Blight (EFB). Eastern filbert blight was first discovered in Vancouver, WA in the late 1970s and from there spread to the Willamette valley where it wreaked havoc on Oregon’s Hazelnut orchards. The first releases of EFB resistant varieties from OSU’s Hazelnut breeding program have held the pathogen at bay in the Pacific Northwest for a decade or so since their release.  Growers in Washington are now concerned about the introduction of new, more virulent EFB strains from the different geographical areas where this pathogen occurs, rendering resistant Corylus cultivars ineffective.

For the ornamental industry, it should be noted that this quarantine affects all species of the genus Corylus, which includes the popular Corylus avellana ‘Contorta’ (Harry Lauder’s Walking Stick).

Nursery stock shipped from Oregon to Washington must be accompanied by a phytosanitary certificate stating that the Oregon Department of Agriculture (ODA) has inspected the nursery stock during the last active growing season and found it free of eastern filbert blight. If you have questions regarding this new quarantine please contact your local Nursery Inspector or the ODA’s Nursery Program at 503-986-4644.

Pesticide Certification Classes Offered for Spring 2013

Check out the latest newsletter and shedule of classes for the Agricultural Science Department at Chemeketa Community College.

Spring 2013 Newsletter and Schedule of Classes

Deadline to Purchase 2013 Nursery Multi-Peril Crop Insurance (MPCI) Coverage Approaches

Complete Details:

Spokane, Wash., April 2, 2012 ---- USDA’s Risk Management Agency (RMA) advises Pacific Northwest nursery growers of the May 1, 2012 sales closing date for 2013 Nursery Multi-Peril Crop Insurance (MPCI) coverage.


MPCI Nursery insurance provides protection for wholesale nurseries producing and marketing nursery plants grown in standard nursery containers or in the field.  Coverage is based on a plant inventory value report (PIVR) declaring a value of insurable plants (the lower of a nursery grower’s own prices or prices contained in a Plant Price Schedule maintained by USDA). 


New policy applications may be filled at any time; however, all applications, including those for new or amended coverage, are subject to a 30-day waiting period before commencement of coverage. Current nursery policyholders may request changes in coverage and/or obtain the Pilot Nursery Grower’s Price Endorsement (NGPE) in Oregon and Washington, prior to the May 1 sales closing deadline.


Local crop insurance agents are available to provide program details that reflect the grower’s nursery inventory. 

A list of crop insurance agents is available at all USDA Service Centers throughout the U.S. or at the website address: http://www3.rma.usda.gov/tools/agents/

USDA's Risk Management Agency main website

Weed Assessment Survey for Nursery Production now available online!

Participation in this brief survey should only take about 5 minutes of your time, but provide valuable information to OSU researchers! Thank you in advance for your input and time~

To participate, please click link below:

Assessing Weed Management Needs in Oregon Nursery Production

New website focusing on species of Phytophthora launched by OSU Professor Jennifer Parke.

Forest Phytophthoras of the World is an international resource where scientists, students, forest managers, regulators, policy makers and the public can share the latest information on species of Phytophthora that affect the world’s forests. 

The new site was launched by Oregon State University professor Jennifer Parke with assistance from Joyce Eberhart, Senior Faculty Research Assistant, Oregon State University, and Professor Everett Hansen, Oregon State University.

Boxwood Blight Detected in Oregon For First Time.

For information regarding Boxwood blight and its history, causes,symptoms and control measures please visit the following links:

Oregon Department of Agriculture

PNW Plant Disease Management Handbook

Hearing date set for possible expansion of the Sudden Oak Death (SOD) quarantine area in Southern Oregon.

Meeting Information

  • Date: January 24th, 2012
  • Time: 7:00 PM
  • Location: 28798 Hwy 101, Gold Beach Oregon


Phyothophthora ramorum (sudden oak death) has been found north of the current quarantine boundary near Cape Sebastian in Curry Co. The proposed amendment would expand the quarantine northward to include the new site and a buffer area of approximately three miles. With the expansion of the quarantine, it is proposed to define disease-free and generally-infested areas within the quarantine. Provisions are proposed that would allow use of tanoak logs and firewood from disease-free areas. Encouraging use of tanoak should help slow the spread of the disease and lessen the impact on residents.


Comments will be accepted until January 31, 2012. If you can not attend hearing but wish to submit comments please send them to sgooch@oda.state.or.us by January 31, 2012.

Mexico ends tariffs on Northwest apples, pears, Christmas trees after winning a trade dispute.

Oregon exporters of Christmas trees received good news last Friday as Mexico lifts 20% tariffs imposed in 2009.

Read more about this victory for the industry by Richard Read of the Oregonian at:

New Varieties From the 2011 Far West Show

Picking the very best plants displayed in the 2011 New Varieties Showcase at the Farwest Show was a tough task falling to no single group. Show judges handed out the official awards, while show attendees voted separately on the People's Choice awards.

As things turned out, however, the two groups agreed more often than not.

Read more at the OAN website >>