Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.
Silage-making has been used to reduce the concentrations of toxins in a variety of crops. But in the case of poison hemlock, the opposite is true — making silage out of it actually increases one of its toxic alkaloids.
Tansy ragwort, an invasive weed that can harm certain types of livestock, is making a comeback in western Oregon. Find out how to control it and protect your animals.
Shelby Filley, Andy Hulting, Gene Pirelli, Eric Coombs |
Aug 2011 |
Article
Mechanical and physical controls are among the most fascinating components of an integrated pest management program. This arsenal involves numerous physical barriers, traps, nets and other mechanical devices.
In integrated pest management, biological controls might include predatory or parasitic insects, bacteria or fungi, and biopesticides. More and more biocontrol methods are becoming available to the home gardener.
The intent of this add-on exercise is for PSA grower course trainees to think through various harvest and post-harvest scenarios and consider implications related to produce safety in the context of real production environments. Each group of trainees (4-6 per group) is given a set of the printed photos to work through. They are asked specific questions, and given 15-20 minutes to work in their groups. Following group discussions, trainers go through the slide deck and ask participants to share what they discussed in their groups about each scenario.
Jovana Kovacevic, Joy Waite-Cusic |
Nov 2019 |
Presentation