Livestock and Forage

Newsletter Feb 2017

Notice: June 26, 2017 - Blue-Green Algae Poisoning

Check large water tanks and especially ponds as the weather warms and dries.  A Lake County producer with livestock that water from a moderate size reservoir on his property has faced a significant Blue Green algae bloom in this water body. Water samples and rumen content samples have been sent for analysis to confirm but all signs are pointing to the algae toxin as the culprit.  The suspected toxin produced in this bloom has killed 28 head of cattle that had access to this water. The cattle were moved when the issue was discovered but exposure to the toxin can result in death up to 48 hours following exposure.

True Armyworm infestation in Tall Fescue and Orchardgrass

There are many reports that the True Armyworm is damaging Tall Fescue and Orchardgrass seed fields.  You may want to check Tall Fescue and Orchardgrass pastures and hayfields at this time for any sign of damage or infestation.

Key characters:

1) Several alternating dark and light stripes along body

1-2 thicker yellow-orange bands running along each side of body from head to tail.

2) Look at the black triangles or marks on four abdominal prolegs

See the photo of the True Armyworm for a good description.


Who's Coming to Dinner?

A description of how animals graze and the type of forage they prefer to eat.

Video:  Porcine Reproductive and Respiratory Syndrome (PRRS): What is it and what to do about it.  (Video takes several minutes to load)

Livestock Grazing, Nutrition and Management - Recorded webinar part 1

Managing Pastures for Longevity (with Grazing?) - Recorded webinar part 2

Important Information for Swine Owners!

PEDv in Oregon Informational Session

Video/slideshow of Information Session

OSU Diagnostic Lab test for PED virus

PED virus Vaccination

Presentation Handout




The Western Oregon and Washington Pasture Calendar

2003 Grass Hay Species and Variety Trial, 2004-2007 Three-Cut Harvest Management Results

Selenium Supplementation Strategies for Livestock in Oregon (EM9094)

Grazing Cattle

Contact Information:

Gene Pirelli - Regional Extension Livestock and Forage Specialist

Polk County Extension Office
289 E Ellendale, Suite 301
Dallas, OR 97338
Monday - Friday, 8am-Noon and 1-5pm (closed noon-1pm)
Polk County Office Phone: 503-623-8395
Cell Phone:  503-931-5163 
Share this