New from EPA Regarding Buffer Zones

Tanner Sheahan
CPS Tangent

I just got the following email through the ODA Pesticides Info email list.  This is the email list that replaced the ODA newsletter.  Many of you probably received this email as well.  If you have not signed up on ODA's email list you can do so here.

This is important.  This is your chance to give your opinion on the proposed Buffer Zone Calculator that will be required for application of many pesticides, most notably for us here is Chlorpyrifos (Lorsban).  I would encourage you guys to take a few minutes and check this out and respond.

Buffer Zone Calculator

The Oregon Department of Agriculture Pesticides Division has been contacted by EPA, and asked to share information with stakeholders in Oregon regarding the buffer zone calculator. EPA is interested in your comments/opinions. A buffer zone in this context is essentially a no-spray area between the intended application site and a waterbody (natural or manmade).

The purpose of the calculator is to address the National Marine Fisheries Service's Biological Opinion related to the potential effects on Pacific salmon and steelhead from the use of Carbaryl, Diazinon, Chlorpyrifos, Malathion, and Methomyl. Please note, this buffer zone calculator concept might be applicable to other pesticides (including herbicides) in the future.

As you may have heard for certain pesticides, instead of the buffer zone being stated directly on the pesticide label, pesticide applicators will be required to calculate the buffer zone based on certain parameters.  Currently, the parameters include: active ingredient (a.i.); application type; spray droplet size; application rate (lbs a.i. per acre); type of water body; and width at ordinary high water level.  To access the buffer zone calculator and learn about other limitations, applicators will first need to go to the Bulletins Live website (web address provided on label). The actual Bulletins Live site is still under development, but a temporary site (referred to below) is active.

To test the calculator and to see an example of how the buffer calculator works for draft bulletins:

(1) go to the temporary test site:

(2) Click on either Polk or Benton County (no other Oregon county will work)
(3) Click on October 2010 (no other month will work)
(4) When the draft Bulletin loads, scroll to the bottom and click the "button" for the buffer calculator.

Select various parameters and explore the system.  Take notes about what works or makes sense, and also about what doesn't work or make sense. Is it easy for you to calculate the lbs. of a.i. in a product? Please try to be as constructive, concise and honest (yet polite) as possible. Provide your comments to ODA by July 2, 2010.

Submit comments to Rose Kachadoorian:

Your comments will be forwarded to EPA. As you may know, EPA is responding to litigation and this isn't going to go away. So, let's work on making the calculator as painless, practical and functional as possible.

Sample County Maps

In addition, we have sample bulletins (as a .pdf) for each county in which Carbofuran, Carbaryl or Methomyl is subject to limitations as a result of the NMFS Biological Opinion for Pacific salmon and steelhead.  If you would like to see these draft maps, please email Rose Kachadoorian at and you will be emailed these large files.


ODA Home Page

Recent Pesticide and Fertilizer Violations

Upcoming Pesticide Classes Search Page

Oregon Section 24(c) Registrations

Oregon Section 18 Exemptions

Useful Swathing Info

Bob Schroeder
CPS Tangent

Here are some useful links regarding swathing timing of various crops.  At the bottom of this post is a chart for seed moisture and swathing timing.  These moisture levels were developed through years of research by OSU.

Response of Seed Yield to Swathing Timing in Tall Fescue and Creeping Red Fescue

Using Seed Moisture as a Harvest Management Tool to Determine Swathing Time in Grass Seed Crops

Response of Seed Yield to Swathing Time in Annual and Perennial Ryegrass

Growing Meadowfoam

Crop                                      Optimum Moisture 
                                                        for Swathing           
Meadowfoam                                  42%
Crimson Clover                               35%
Annual Ryegrass                         43-46%
Tall Fescue (forage)                    40-43%
Tall Fescue (turf)                        35-41%
Perennial Ryegrass                     35-43%
Orchardgrass                             42-46%
Fine Fescue                               20-35%

Fescues, perennial ryegrass, and annual ryegrass will lose about 2-3% moisture per day while orchardgrass loses about 1% per day.  Meadowfoam loses 2% moisture per day.

New Mocap Labels

Tanner Sheahan
CPS Tangent

There are two new labels for Mocap EC approved for use in Oregon.  Mocap is a great insecticide-nematicide and is very effective on symphylans.

This label is a 24c Supplemental Label for a reduced rate of Mocap EC on snap beans.  The 24c is valid until December 31, 2014.

This label is a Supplemental Label for Mocap EC on hops.  The new label also allows for application through subsurface drip irrigation on producing hops.  This is a supplement to the federal label.

Thanks to Barry Duerk of Bayer for sending these out to us.

Rely 200 receives Fall Application approval on Grasses Grown for Seed

Jason Bennett
CPS Tangent

The Oregon Department of Agriculture has amended the Section 24 for Rely 200 on Grasses grown for Seed.  They have added a fall application approval along with the already spring application.  Before the label only allowed 1 application a year, now you are able to apply 2 times a crop year once in the fall and once in the spring.   The have also clarified the application timing in relationship to growth stage and time of year.  Ask your fieldman for any further detail on the label changes.  Click here the view the Rely 200 Label.

Grower Appreciation BBQ, June 18

Tanner Sheahan
CPS Tangent

It's time for our annual Grower Appreciation BBQ this Friday! 

 We want to take this time to specifically thank our customers for your business throughout the year.  We wouldn't be here if it weren't for your continued loyalty and support.  Thank you.

Join us for some good family fun this Friday, June 18th, at Tangent Elementary School.  The festivities will run from 6-8PM.  We'll have the pie eating contest and coin find for the kiddos as well as door prizes for everyone else.

Here is a flyer for the event as a reminder.

Come out and let us put on a great dinner and a fun evening for you and your families.

Friday, June 18th, 6-8PM at Tangent Elementary School.

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CPS Tangent Plot Tour Review

Tanner Sheahan
CPS Tangent

We had a great turn out for our plot tour on Thursday.  Many of our customers braved the chance of rain to come check out our plots at the research farm on Hwy 34.  We also had Chris Mundt, OSU Plant Pathologist, and Andy Hulting, OSU Extension Weed Specialist, as well as Dave Lockwood from Corvallis Feed and Seed.
Gathered under the awning after looking at the plots.  The rain held out just long enough.  Thanks to Fred Wutzke for putting together the coffee and cookies
A highlight of these plots was AP Badger, a new wheat variety available through a partnership with Agri-Pro (a Syngenta owned company) and Crop Production Services.  It has been developed in Idaho and looks very promising for our market.  They are producing seed stock this year and some certified seed should be available through CPS for growers next year.  Talk to your fieldman about this new variety soon so we can be sure to get seed stock reserved for next year.
A look at the wheat plots.  We had Tubbs06, Goetze, AP Badger, Sounder, and Westbred528
We also had three varieties of Camelina planted at the farm.  There's not a lot of information out there on this oilseed crop yet but it holds some potential to be a rotational option for growers in the Willamette Valley. 
Camelina plots.
A big topic of discussion at the tour was stripe rust in wheat.  We've posted several articles and pictures over the last couple months illustrating the advancement of the disease in our area as well as describing the HTAP resistance in Goetze.  Chris Mundt was able to shed a little light on this situation in saying that it is believed that we are now dealing with a new race of stripe rust that, believe it or not, started elsewhere and has circled the globe making its way to the PNW.  He said the initial infections probably got started last fall and were able to advance by several generations during the unusually warm January and February we had here.  I put together this handout for the tour to put some Growing Degree Day and precipitation information side-by-side for the last several years.  This gives you some real numbers to compare the last eight years and makes it apparent that this year is in fact unusual.  We started the year well ahead on GDD's but have now fallen behind the average.  There are also a couple pictures at the bottom of the handout to show the progression of the disease over the last couple months.

The warmer-than-usual weather in January and February and the cooler-than-usual weather in March, April, and May coupled with the early infection of a new race of stripe rust has created the perfect storm for disease advancement.  Chris Mundt gave further evidence of this by saying that this is the first time in 22 years that he has observed any significant stripe rust on the Stephens variety of winter wheat.  Stripe rust in winter wheat and the wet weather that is prolonging the problem even made a featured story on Fox12 Portland news last night.

OSU still has confidence that Goetze is a good variety for us.  With stripe rust being driven by weather it's a tough year to make any serious conclusions other than the fact that it's a tough year.  We can't give up on Goetze yet.  On a drier year we want the high yield potential Goetze has to offer.

There have been several of these plot tours over the last week or so, including the Hyslop Farm tour and a couple North Valley tours.  The take home message on the stripe rust has been that the need for fungicides is now.  In other words, if you are going to retreat any fields you need to get it done now or forget about it.  We have to protect the flag leaf to get seed fill and prevent shriveled kernels and low bushel weights.  Once we lose green leaf surface area to disease the best we can do is stop it, we can't make it green again.  Most of the fungicide labels have a cutoff at flowering which is very quickly approaching.  As long as the plants continue to stay wet, both stripe rust and septoria will be able to advance at will.  Talk with your CPS fieldman about your options.