Healthy trees are beneficial to our environment and our property values - but how do we determine if a tree is healthy? This publication briefly discusses common tree health problems and outlines a p ...
In 2007, an herbicidal control study was initiated on rangeland infested with ventenata (Ventenata dubia (Leers) Coss & Durieu) near Anatone, Washington. Two rates of imazapic were applied in the e ...
Explains the different types of resistance that weeds can develop and how to avoid making the problem worse. Gives examples of common Northwest weeds and their herbicide resistance.
Found in all areas of the Pacific Northwest, meadow deathcamas (Toxicoscordion venenosum) is capable of killing livestock whether eaten as forage or in dried hay. Human poisonings have been reported i ...
Weed species in the Solanaceae, or nightshade family, cause some of the most serious weed-related problmes in Pacific Northwest agriculture. Nightshade control is difficult becase the weeds are so ...
Oxeye daisy is a showy perennial herb that was introduced from Europe. It is a noxious weed in Washington and several Idaho counties. Once established, oxeye daisy competes against grasses, reduces ca ...