This community features publications and educational materials created by the WSU Extension, a network of agricultural experts across Washington state. With 39 locations throughout the state, WSU Extension builds the capacity of individual, organization, businesses and communities, empowering them to find solutions for local issues and to improve their quality of life. Extension collaborates with communities to create a culture of life-long learning and is recognized for its accessible, learner-centered, relevant, high-quality, unbiased educational programs.

WSU Extension began in 1913, a year ahead of federal legislation authorizing the present extension system. In that year, Washington state authorized a Bureau of Farm Development headquartered at Washington State College and provided for the appointment and maintenance of agricultural experts across the state. By then, however, George A. Nelson, the first county extension worker, had been on the job for more than two months. Nelson was appointed as agriculturist for Wahkiakum County December 12, 1912. He was absorbed into the new Bureau. Pioneer extension educators established a philosophy that’s still relevant today: “helping farmers to help themselves.”

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  • Advances in dryland farming in the Inland Pacific Northwest 

    Yorgey, Georgine; Kruger, Chad E. (Pullman, Washington : Washington State University Extension, 2017-07)
    The Pacific Northwest is an important wheat production region. In 2015, the National Agricultural Statistics Service indicated that Washington, Idaho, and Oregon harvested more than 240 million bushels of wheat, worth an ...
  • Understanding access to capital issues for entrepreneurs through simulations 

    Lane, Trevor C.; Tampien, Jordan K. (Pullman, Washington : Washington State University Extension, 2017-07)
    As more and more digital natives are coming of age, the reality of the effectiveness of and the important need for powering up creativity with short simulations is hinged on the premise of a game because of the impact it ...
  • Tobacco rattle virus in peonies : a reference guide for cut flower and rootstock producers 

    Garfinkel, Andrea R.; Steinlage, Todd; Chumley, Janice; Chastagner, Gary A. (Pullman, Washington : Washington State University Extension, 2017-07)
    Tobacco rattle virus (TRV), previously referred to as Peony ringspot virus or Peony mosaic virus, is one of the most widespread viruses of peonies. There have been reports of this virus throughout Asia, Europe, New Zealand, ...
  • Lady beetles : should we buy them for our gardens? 

    Chalker-Scott, Linda; Bush, Michael R. (Michael Robert), 1962- (Pullman, Washington : Washington State University Extension, 2017-07)
    Lady beetles are a popular biocontrol method for aphids in home gardens and landscapes. Many gardeners purchase these insects at nurseries, garden centers, and online. This publication will discuss the drawbacks to using ...
  • Protecting your identity 

    Koehler, Christian R. (Pullman, Washington : Washington State University Extension, 2017-07)
    Identity theft is one of the fastest growing white collar crimes. The Bureau of Justice Statistics estimates that 17.6 million persons age 16 or older were victims of identity theft in 2014 based on those surveyed, and ...
  • Biofumigant cover cropping in potatoes : Dale Gies : farmer-to-farmer case study series : increasing resilience among farmers in the Pacific Northwest 

    Yorgey, Georgine; Kantor, Sylvia; Painter, Kathleen Marie, 1957-; Davis, Hilary; Bernacchi, Leigh (Pullman, Washington : Washington State University Extension, 2017-06)
    Dale Gies grows potatoes, wheat, and seed crops for vegetables and cover crops under irrigation near Moses Lake, Washington. In this publication, Gies discusses his experiences using a biofumigant cover crop to add organic ...
  • Pale green weevil : Polydrusus impressifrons Gyllenhal (Coleoptera: Curculionidae: Entiminae) 

    Niedbala, John C., Jr., 1967-; Rodstrom, Robert A., 1977-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Hybrid poplars (Populus spp.) are propagated by inserting 12–15 inch cuttings next to each water emitter in a denuded 160 or 271 acre (65 or 110 hectare) field. The number of stems/hectare depends upon the final product: ...
  • Duel-purpose winter canola in the Pacific Northwest : silage production 

    Llewellyn, Donald A.; Fransen, Steven C.; Walker, Ely; Sowers, Karen (Pullman, Washington : Washington State University Extension, 2017-06)
    Winter canola (Brassica napus) is used as a break crop in the primarily cereal grain rotations of the Pacific Northwest (PNW). Research over the last 40 years has largely been focused on grain production. However, renewed ...
  • Integrated pest management for the wheat head armyworm complex in the Pacific Northwest 

    Roberts, Diana; Rondon, Silvia I.; Landolt, Peter J. (Pullman, Washington : Washington State University Extension, 2017-06)
    The wheat head armyworm complex (WHAC) is comprised of two armyworm species, Dargida diffusa (Walker) and Dargida terrapictalis (Buckett), which caused recent, intermittent damage to cereal crops in the Pacific Northwest ...
  • Washington bumble bees in home yards and gardens 

    Pehling, David; Glass, Jenny R. (Pullman, Washington : Washington State University Extension, 2017-06)
    Bumble bees, with their robust bodies, colorful bands of “fur” and audible “buzz” while in flight are the most well recognized of the native bees in Washington State. Equipped with pollen collecting hairy bodies and “pollen ...
  • Tenlined June beetle : Polyphylla decemlineata Say (Coleoptera: Scarabaeidae: Melolonthinae) 

    Rodstrom, Robert A., 1977-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Immature grubs of the tenlined June beetle are establishment pests of poplar. Cuttings used to propagate and establish hybrid poplars on land used previously for pasture or irrigated crops often fail due to grub feeding ...
  • The field book for dairy manure applicators 

    Bary, Andy I.; Harrison, Joe (Joseph Heywood), 1956-; Sullivan, Dan M. (Dan Matthew), 1954- (Pullman, Washington : Washington State University Extension, 2017-06)
    Field record-keeping is a key part of manure management. It includes: Where manure was applied; How much manure was applied; When manure was applied. Good records help you make the most of your farm’s manure. They give you ...
  • Western poplar clearwing moth : Paranthrene robiniae (Hy. Edwards) (Lepidoptera: Sesiidae) 

    Kittelson, Neal T., 1977-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    As a result of Washington State University integrated pest management (IPM) research, all commercially grown poplars in the Pacific Northwest for Forest Stewardship Council (FSC) certified products are now protected by a ...
  • Lace bugs : Corythucha salicata Gibson (Heteroptera: Tingidae) 

    Rodstrom, Robert A., 1977-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Lace bugs are generally not a pest of poplars grown east of the Cascade Mountains, but expanded plantings of poplars for potential biofuel production in western Oregon and Washington have been attacked by these sap-feeding ...
  • Gluphisia septentrionis Walker : (Lepidoptera: Notodontidae) 

    Del Pozo-Valdivia, Alejandro I., 1981-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Outbreak populations of the common pebble moth, Gluphisia septentrionis can totally defoliate thousands of hectares of poplar trees. Professional IPM practitioners can use this publication as a guide toward identifying ...
  • Raised beds : will they benefit your vegetable garden? 

    Cogger, Craig George, 1950- (Pullman, Washington : Washington State University Extension, 2017-06)
    Many vegetable gardeners use raised beds, but other gardeners successfully grow fruit and vegetables directly in native soil. Which system is best for you? This publication will describe the uses of raised beds and weigh ...
  • Forest and Western tent caterpillars : Malacosoma disstria Huber and M. californicum pluviale (Dyar) (Lepidoptera: Lasiocampidae) 

    Rodstrom, Robert A., 1977-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Several web-spinning caterpillar species attack hybrid poplars in eastern Oregon and Washington. In addition to forest and western tent caterpillars, the fall webworm [Hyphantria cunea Drury (Lepidoptera: Erebidae)] is ...
  • Speckled green fruitworm : Orthosia hibisci Guenée (Lepidoptera: Noctuidae: Noctuinae) 

    Del Pozo-Valdivia, Alejandro I., 1981-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    We cannot definitely list Orthosia hibisci Guenée as an annual pest of hybrid poplar trees in Oregon and Washington. However, a major defoliation of older trees due to this pest in 2005 lead to an application of diflubenzuron ...
  • Poplar-and-willow borer : Cryptorhynchus lapathi (L.) (Coleoptera: Curculionidae) 

    Hannon, Eugene R., 1970-; Brown, John J. (Pullman, Washington : Washington State University Extension, 2017-06)
    Poplar-and-willow borer larvae burrow into stems of all ages of poplar; their galleries weaken the bole and limbs of infested plants, causing them to break when stressed by high winds. There are no chemicals available to ...
  • Poplar satin moth : Leucoma salicis L. (Lepidoptera: Erebidae: Lymantriinae) 

    Brown, John J.; Rodstrom, Robert A., 1977- (Pullman, Washington : Washington State University Extension, 2017-06)
    Multiple pesticides are available to control satin moth populations that are occasional pests of nursery plants (Rinehold 2015). However, integrated pest management (IPM) practitioners have limited pesticides that can be ...

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