Joe Moade

For the past few months this large larval insect has been causing damage in annual ryegrass, clover, and perennial ryegrass.

Craneflys have a "spoiler" looking tail.

The head of a Cranefly can be retracted as show in this picture.

The European cranefly over winters as a larva feeding on shoots and crowns, but also feeds on roots as well. In the late spring the larger larva come to the surface at night and will feed on above ground parts of the plants. The larva typically will remain active until June, July or August. At that time they pupate and remain dormant in the soil until August-September. In late summer the adults emerge from the soil and mate, starting the cycle over again. Note: A second type of cranefly has a two generation per year life cycle with adult flights in spring and fall.

Adult Cranefly

Cranefly larva

If you have a low wet area of a field that just does not seem to be looking right or you think that you might have cranflys contact your CPS field man for more information on your options.

Bayer Crop Science Plot Tour

Joe Moade

Wednesday March 24th Bayer Crop Science, Oregon State University, and Crop Production Services Tangent had a Bayer Plot tour looking at a new chemistry for Annual Blue grass control in Grasses grown for seed. While this is still in the early experimental stage the results look promising. We looked at this product in carbon planted perennial back in January.

Barry Duerk (on right) welcomes everyone

Treated on the left untreated on the right.

  Bayer Crop Science

           Bayer Crop Science and OSU (Andy Hulting and  Barbra Hinds-Cook on the right)

New Fumigation Services Page Added

Tanner Sheahan

I've added a new page tab for our Fumigation Service.  I'll continue adding information and pictures to this page as we do more fumigation jobs.  Check it out!

How Goetze Stripe Resistance Works

Tanner Sheahan

I just received an email from Jim Peterson, OSU Wheat Breeder, in which he explains how the genetic disease resistance present in both Goetze and Tubbs06 actually works.  For any further information, Jim recommended we contact Chris Mundt, OSU Plant Pathologist.  I am re-posting an excerpt of Jim's email here, with his permission of course.

Please note that both Goetze and Tubbs 06 carry genes for HTAP (high temperature adult plant) resistance to stripe rust.  Goetze, in fact, carries the Yr29 gene for adult plant resistance, plus others. 

HTAP resistance generally kicks in when night temperatures are above 50 degrees and day temps are above 68 degrees, and plants are in, or near, adult plant stage. The temperature effect on expression of HTAP resistance is not clear-cut, but varies with number of genes, plant development stage, and day vs night temperatures.  Heavy inoculum and cool conditions can cause high rust severity on plants with moderate levels of HTAP resistance (such as Tubbs 06). 

It is early to expect HTAP resistance to be fully effective.   An early season infection, as you have recently found, is certainly possible.  However, we would expect HTAP resistance to kick in soon and reduce the chance of spread.

Jim also pointed out that "the cycle for stripe rust (infection to sporulation) is about two weeks."  The newer leaves on the infected plants we have been finding are, at this point, still relatively free of disease.  With the disease resistance kicking in as the day and nighttime temperatures increase, we should not see rapid disease spread at this point.  Trust me however, we'll be keeping an eye on it.

A big thanks to Jim Peterson for explaining the resistance mechanism so clearly and concisely.

Stripe Rust Found in Goetze, Tubbs

Tanner Sheahan

Well, I guess I'm the bearer of bad news.  Stripe Rust has been found in Goetze winter wheat in the Willamette Valley.  Monday, March 22, I spotted a small yellow patch while riding my Honda across a nice wheat field in the eastern side of the Valley.
I looked a little closer and discovered advanced stripe rust in the yellow spot pictured above.  At this point, the yellow area is not much bigger than a four-wheeler but I was able to find a few individual pustules starting to show up just outside this area.

Since Monday, your CPS fieldmen have been scouring your fields.  There have been several other Goetze fields in the area, and a few Tubbs06 fields in Benton county, found to be infected with stripe rust.

Generally speaking, according to the calendar, this is pretty early for rust diseases to be showing up here in the Valley.  Refer back to Jason's article on growing degree days and you can see why.  According to the GDD calculator on the Weather Channel website, we have accumulated 64.5 GDD's so far this year since January 1st compared to 7.5 GDD's for the same period in 2009.

Here are the GDD summaries for the last several years for January 1st through March 26th:

2010: 64.5
2009: 7.5
2008: 7.5
2007: 105.0
2006: 29.5
2005: 51.0
2004: 38.0
2003: 51.0

With disease development, the timing of heat accumulation makes a world of difference.  We haven't seen severe disease pressure in our part of the Valley for several years.  As an example, in 2007, only 10 GDD's were accumulated through the end of February with the other 95 GDD's accumulating after the first of March, which was relatively dry.  This year, we have seen 33 GDD's accumulate in January and February followed by a warmer March and a fair amount of moisture. 

What does this mean for Goetze winter wheat production in the Willamette Valley?  Is this just an exceptional year with perfectly timed warming events to spur on disease development?  Is the genetic disease resistance of our two biggest wheat varieties breaking down?  Time will tell but, for now, we're watching closely.  Talk with your CPS fieldman if you are growing winter wheat this year.  It is time to discuss a disease control strategy.

Truck Sold

Curt Dannen

The truck has sold.

Thanks to everyone that took a look and we hope the new owners enjoy it.

Wheat Tour

Jason Bennett

Last week Mark Mellbye put on a No Till Wheat Variety Trial.  They are looking at three varieties, Madsen, Tubbs, and Goetze.  This trial is a repeat that has been done over the previous couple of years.  Mark will follow these to harvest.  It is interesting to watch these varieties side by side as they emerge and progress through the winter/spring differently and up until harvest.  You may want to take a look in June to see the difference in height among the varieties.  So grab your fieldman and take a look.

Truck For Sale

Curt Dannen

For Sale: 1993 Peterbilt Cabover Truck

400 Cummins Big Cam 4, Eaton Fuller 13 speed
265" Wheel base, Pintle Hitch
11-Rx24.5 tires, with approximately 60% rubber remaining
624,364 miles

Call the Tangent office and ask for Curt: 541-928-3391

Joe Cacka and the White Grub

Tanner Sheahan

This post is dual purposed.  We want to officially introduce Joe Cacka, Cascade/Columbia Division Agronomist and also highlight one of his recent research projects.

Joe has conducted over 2000 agricultural research trials in the past 24 years working for Western Farm Service and now Crop Production Services (CPS).  Joe brings with him a degree in Integrated Pest Management, MSc. and a Crop Science, BSc. both from OSU.

He has worked on a diverse number of crops including grass seed, clover seed, corn, beans, blueberries, cane berries, hops, cherries, hazelnut, and Christmas trees.  Testing new products coming to market and refining the use of older products has be part of his responsibilities.  He has developed crop monitoring programs (CMP) in tall fescue, perennial ryegrass grown for seed, and hazelnuts.  He is currently working on blueberries and wheat CMP’s for the Willamette Valley producers.  Joe and Paolo Sanguankeo his research assistant will conduct over 75 new trials this year.

One of Joe's projects this year is a fairly new problem found in Christmas tree production. 

A Serica spp. Beetle sometimes called a `June Beetle’ is causing significant damage to noble fir, nordman fir and others.  The larvae of this beetle is often referred to as a `white grub’ causes severe root feeding during the fall through the winter and early spring.  This feeding when populations are high reduced the trees ability to draw nutrients and moisture during the growing season leaving trees looking drought stressed with needles desiccating and dropping off and possibly resulting in tree death.

Serica spp. "White Grubs" to the left and the adult beetle below.

The adult beetle are 5-8 mm (0.25 – 0.3”) long and 3-5 mm (0.12 – 0.25”) wide.  They emerge in early June and are found in the fields through Sept. The larvae are a `white grub’ which can be found from  July through May.  The larvae will grow to 12-17 mm (0.5-0.6”) long.

Damage caused by the `white grub’ larvae of the Serica spp. Beetle.

Joe and the agronomy team is working on identification of the pests and learning their life cycles and developing control and management strategies.

If you are growing Christmas trees and are seeing these symptoms, contact your local CPS fieldsmen and he will work with you and the agronomist to determine the cause of damage.

Interesting Short Article

Pat Boren

The following short article on crop nutrients appeared in the last issue of The Furrow Magazine.

Beware: Nutrient Mining

Is your soil fertility program keeping up with your crop genetics?  Data from the International Plant Nutrition Institute shows vast swaths of farmland across the United States may be losing phosphorus (P) and potassium (K) faster than farmers are replacing it with fertilizer.

"Unfortunately, many growers are still fertilizing the way they did before higher-yielding crops were developed," says Dan Froelich, director of Agronomy for Mosaic, a Minnesota based fertilizer producer.

Maintain balance.  Nitrogen gets the most attention of all the crop nutrients, but P and K help the crops utilize it best.  An Ohio State University study showed a corn yield reduction of 44% when high levels of nitrogen were applied to fields with inadequate K.  Similarly, an Oklahoma State University study, showed that adequate levels of P and K doubled nitrogen efficiency in wheat.

New Page Link Added

Jason Bennett

Check out the new page link added just above the blog postings (Check Your Credit Hours Here).  The link will direct you to your current applicator license credit reports.  It will also guide you through finding out what is required for obtaining a different license.  If you need more information make sure you contact your fieldman and he will help you find any additional information needed.

New ODA Publication: PPE

Tanner Sheahan

The Oregon Department of Agriculture and Oregon OSHA has released a new publication focused on Personal Protective Equipment.  This is an important safety area growers need to pay close attention to.

Follow the link below to download a PDF of this publication or print out copies for your operation.


Farming is an inherently risky occupation and we all need to keep safety a priority in our work practices.

Flying with Kent Wooldridge

Tanner Sheahan

I had the great opportunity to go flying with Kent Wooldridge of TransAg, Inc.  Kent is a local ag pilot and does a lot crop spraying, seeding, and fertilizing by air around the mid-Willamette Valley.  He didn't do any aerial acrobatics while I was with him, I was thankful for that.

Here are a few of the pictures I snapped while we were up there.

Looking Southeast, Shedd is directly behind me.
Looking Southwest with the Halsey mill in the background, busy making lime...and probably some paper.
Looking Southeast over the city of Halsey
Looking Northwest towards Saddle Butte.
Looking West over Tangent Drive.

I was amazed at how much water there is when you get a chance to see the Valley from that perspective.  A big thanks to Kent for taking me up.