Extension Service Site Publications

• (2024) PNW Insect Management Handbook - Alfalfa Weevil This section of the PNW Insect Management Handbook provides insecticide products currently labeled for use in controlling alfalfa weevil in hay crops.
• (2023) Statewide Needs Assessment for the Hemp Industry in Oregon This needs assessment identifies what is known about hemp cultivation and knowledge gaps recognized by industry members, including growers, processors and allied stakeholders. This information will help establish priorities for future research and outreach efforts for the hemp industry across the state. This study aimed to identify and prioritize the research and educational needs of Oregon hemp growers and other industry members.
• (2023) How to control household ants?
• (2022) Stink bugs and boxelder bugs everywhere?
• (2022) The Economic Impact of Onion Pests in the Treasure Valley A look at pest data for onions grown in the Treasure Valley demonstrates the yield and economic impacts of specific pests and management practices. This data can help researchers, crop consultants and those interested in integrated pest management balance the costs and benefits of specific growing practices.
• (2021) Was this spider silk or something else?
• (2021) Is this a hobo spider?
• (2020) What is this huge larvae in my mason bee box?
• (2015) Detecting Plant Diseases in the Lab The Hermiston Agricultural Research and Extension Center in Hermiston, Oregon has a full- service, plant pathology diagnostic lab that serves the growing needs of the agricultural community in the Columbia Basin. The lab receives all types of plant disease samples including diseases of potatoes and other vegetables, trees, and ornamentals, and diseases spread by insect vectors. We use a variety of testing methods, ranging from traditional culturing techniques for fungi and bacteria to advanced molecular techniques that use pathogen DNA sequences to identify pathogens and diagnose diseases.
• (2015) Using A Plant Press Preserving plant specimens is the best way to identify plants by their characteristics at a later period of time. It is always best (if possible) to collect the entire plant specimen at peak production, so you have included the roots, flowers and potentially the seeds of the plant.
• (2015) Integrating Integrated Pest Management Insects, weeds and plant pathogens are problems that confront farmers in trying to grow a successful crop. Insect pests can defoliate crop plants. Weeds can outcompete crops for light, water and nutrients. Pathogens can cause disease epidemics that destroy entire crops.
• (2015) Monitoring diseases in the field Diseases can reduce the yield and nutritional quality of crops. Vectors are organisms that transmit pathogens that cause diseases and can also threaten crops. Some important vectors of plant pathogens in the Pacific Northwest include the potato psyllid that vectors the bacteria that causes Zebra Chip disease in potatoes and onion thrips that vector Iris yellow spot virus in onions.
• (2019) An Integrated Pest Management Strategic Plan for Treasure Valley Onions: Oregon and Idaho (2019) Growers, commodity-group representatives, pest-control advisors, university specialists, and other technical experts from the Treasure Valley in Oregon and Idaho provide an overview of onion production. They identify pest management priorities and lay a foundation for increased use of Integrated Pest Management in onions. They identify critical production aspects of this crop, and describe the biology and life cycle of onion pests. Authors organize management practices and challenges by crop life stage and describe whole-season management practices and constraints.
• (2016) Internal Dry Scale and Associated Bulb Rots of Onion Onion growers and packers in the Pacific Northwest have observed a problem on red, white, and yellow cultivars: internal dry scale. Bulbs affected by internal dry scale have dead inner scales that are susceptible to fungi, bacteria, and yeasts, which can lead to rot. In addition to outlining the incidences and symptoms of internal dry scale and associated bulb rots of onion, this publication discusses the factors that contribute to it and suggests tactics for limiting it.
• (2017) Potato psyllid vector of zebra chip disease in the Pacific Northwest Zebra chip disease is a potato infection emergent in the Pacific Northwest. Learn about the bacterium, the biology of the potato psyllid vector, the damage it causes and management techniques.