Nitrogen, phosphorus and potassium aren't just an alphabet soup of chemicals. They are essential plant nutrients that, when used correctly, help to grow a healthy garden. Learn what fertilizers to apply when in this handy guide.
The omnivorous leaftier has a wide host range and is known to cause damage to species from more than 20 plant families. Native parasitoid wasps manage this pest in natural and cropland settings. The first ...
Navneet Kaur, Leonard Coop, Jessica Green, Bill Gerth, Nicole Anderson, Glenn Fisher |
Aug 2020 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo courtesy of Oregon Department of Agriculture (Cropped from original)
The Japanese beetle is an invasive pest that has established itself in parts of the US. In 2016, a breeding population was found in Oregon, which triggered an eradication effort and a call to report sightings.
Although grain crops bring in less revenue than vegetables or fruit, they can become an important part of a farming enterprise. Grains are less labor-intensive and can be grown when fields need a rest.
Pacific Northwest blueberry growers must identify and control a number of bacterial and fungal diseases in order to ensure the highest yields. Fortunately, only a few of the diseases that occur on highbush blueberry in this region cause significant losses when left unchecked.
Jay W. Pscheidt, Jerry Weiland |
Mar 2015 |
Article
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Cereal cyst nematodes reduce yields of wheat, barley, and oats in the Pacific Northwest states of Idaho, Oregon, and Washington. It is estimated that these pests reduce wheat profitability in these states by at ...