Q: We live in a large condominium between NW Naito Parkway and the Willamette River. Our property extends to the banks of the river. Our landscaper has been using a diluted version of glyphosate to control weeds on the property and blackberry vines along the edge of the river. We have LOTS of dogs in our complex, and some of our residents like using the rosemary growing...
Search OSU Extension
Residues of lead arsenate, DDT, and other persistent pesticides may be in soil where orchards once grew and homes now stand. This report discusses how to investigate former pesticide use and current pesticide residues on your property, soil and water sampling and testing, and what to do about elevated pesticide residue levels.
Reviews Russian thistle biology as it relates to management, including seed dormancy and longevity in soil, seed distribution, seed germination and emergence, plant growth after establishment, crop competition, and resistance to herbicides. Outlines key considerations for managing for 3 crop years and 1 fallow year. Describes results from a residue management experiment designed to determine how to reduce tillage while maintaining winter wheat production.
OSU research indicates that the less toxic iron phosphate containing slug baits are as effective as those with metaldehyde.
Organic pesticides are usually considered as those pesticides that come from natural sources. They are usually minimally processed. These natural sources are usually plants or minerals. There are also microbial pesticides.