Noxious and Invasive Species

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Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems/Identificación y Manejo de Enfermedades, Plagas y Otros Problemas en Árboles de Navidad

Click on the link below to visit the mobile-friendly companion website, or order a hard copy ($33) from OSU.

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Meadow Deathcamas in the Pacific Northwest

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 ...
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Nightshade: Biology and Control in the Pacific Northwest

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 ...

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Noxious Weeds: Everyone's Enemy - YouTube link

A 49- minute DVD identifying noxious weeds and controls. ...
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Oxeye Daisy

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 ...
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Pacific Poison- oak and Poison-ivy: Identification and Management

How to identify and control Pacific poison-oak and western poison-ivy, and how to prevent exposure to the plants’ oily substance, Urushiol, which can cause and allergic contact dermatitis. ...
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Paterson's Curse (Echium plantagineum) in the Pacific Northwest

Paterson's Curse is a weed that is a major problem in Australia, but currently has only limited distribution in the Pacific Northwest. This weed has the potential to severely degrade agricultural h ...

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Physical management of pest birds in agricultural settings

Learn how to mitigate pest birds on farms using innovative deterrence strategies: increase earnings and decrease the health risk posed to producers and consumers. ...
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Recognizing Sapsucker Damage on Your Trees

A common cause of tree damage in yards and small woodlands is sapsuckers (Sphyrapicus spp.), which are a species of woodpecker. Sapsucker damage is easy to identify, although it is often mistaken for ...
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