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.”

Please be aware that the information in these publications may be obsolete;
Contact the Washington State University Extension Service directly to confirm the most up-to-date editions or information.

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  • Financial analysis principles and applications for private forest lands 

    Zobrist, Kevin (Pullman, Washington : Washington State University Extension, 2021-01)
    There are many reasons for owning forestland. Some are financial, such as generating income from timber harvest or a real estate sale after long-term investment. Others are not financial, such as aesthetics, recreation, ...
  • Six steps to calibrate and optimize airblast sprayers for orchards and vineyards 

    Hoheisel, Gwen-Alyn; Khot, Lav R.; Moyer, Michelle, 1982-; Castagnoli, S. (Pullman, Washington : Washington State University Extension, 2021-01)
    The goal for all pesticide applications should be to get every drop to the crop. Calibration ensures that the appropriate product rate is applied by the sprayer, while optimization ensures that the product is delivered ...
  • Biodiesel in the Pacific Northwest 

    Hart, Noelle M.; Townsend, Patricia A. ?q (Patricia Ann) (Pullman, Washington : Washington State University Extension, 2021-01)
    This publication presents background about biodiesel fuel and discusses its role in the Pacific Northwest (PNW), including relevant policies, usage, feedstock sources, and production. Biodiesel is an alternative to ...
  • Field and hedge bindweed : identification and biological control 

    Andreas, Jennifer E.; Winston, Rachel; DesCamp, Wendy C. (Pullman, Washington : Washington State University Extension, 2021-01)
    Field bindweed (Convolvulus arvensis) and hedge bindweed (Calystegia sepium) are similar-looking, weedy vines problematic in North America. Field bindweed is native to Europe and Asia and was introduced to the United States ...
  • 4-H treasurer's handbook leader guide 

    Ferris, Jana S.; McElprang Cummings, Missy (Pullman, Washington : Washington State University Extension, 2021-01)
    Fund development is crucial to WSU Extension programming and, especially, to the 4-H Youth Development club delivery model. Lack of an effective and efficient approach to educating members on proper methods of accruing, ...
  • 4-H Friday Update, December 11, 2020 

    Washington State University Extension (2020-12-11)
  • Best management practices for managing herbicide resistance 

    Lyon, Drew J.; Barroso, Judit; Campbell, Joan M.; Finkelnburg, Douglas; Burke, Ian Cristofer, 1973- (Pullman, Washington : Washington State University Extension, 2020-12)
    Herbicide resistance is a problem that has quickly spread throughout the wheat growing regions of the inland Pacific Northwest. Overreliance on herbicides for the management of weeds is a major cause of herbicide resistance. ...
  • Common interchangable nozzles for perennial crop canopy sprayers 

    Moyer, Michelle, 1982-; Hoheisel, Gwen-Alyn (Pullman, Washington : Washington State University Extension, 2020-12)
    The nozzles on your sprayer can significantly influence the efficacy of your pest management program. They influence how much product is delivered (application rate), the spray pattern on the target crop, and droplet size. ...
  • 4-H Friday Update, November 20, 2020 

    Washington State University Extension (2020-11-20)
  • 4-H Friday Update, November 13, 2020 

    Washington State University Extension (2020-11-13)
  • 4-H Friday Update, November 6, 2020 

    Washington State University Extension (2020-11-06)
  • Botrytis bunch rot in commercial Washington grape production : biology and disease management 

    Moyer, Michelle, 1982-; Oliver, Charlotte; Grove, Gary G. (Pullman, Washington : Washington State University Extension, 2020-11)
    Botrytis bunch rot (BBR) of grapes is caused by the fungus Botrytis cinerea. BBR symptoms are typified by a fuzzy, gray fungal growth on ripening and mature grape berries. Infections often first appear as a single berry ...
  • 2019 cost estimates of establishing, producing, and packing Granny Smith apples in Washington 

    Gallardo, R. Karina, 1975-; Pedroso-Galinato, Suzette (Pullman, Washington : Washington State University Extension, 2020-11)
    The results presented in this WSU publication serve as a general guide for evaluating the feasibility of producing Granny Smith apples in Washington State as of 2019. This publication is not intended to be a definitive ...
  • 2019 cost estimates of establishing, producing, and packing Cripps Pink apples in Washington 

    Gallardo, R. Karina, 1975-; Pedroso-Galinato, Suzette (Pullman, Washington : Washington State University Extension, 2020-11)
    The results presented in this WSU publication serve as a general guide for evaluating the feasibility of producing Cripps Pink apples in Washington State as of 2019. This publication is not intended to be a definitive guide ...
  • 4-H treasurer's handbook 

    McElprang Cummings, Missy; Ferris, Jana S. (Pullman, Washington : Washington State University Extension, 2020-11)
    Fund development is crucial to WSU Extension programming and, especially, to the 4-H Youth Development club delivery model. Lack of an effective and efficient approach to educating members on proper methods of accruing, ...
  • 4-H Friday Update, October 30, 2020 

    Washington State University Extension (2020-10-30)
  • 4-H Friday Update, October 16, 2020 

    Washington State University Extension (2020-10-16)
  • 4-H Friday Update, October 9, 2020 

    Washington State University Extension (2020-10-09)
  • Mason County 4-H News Blast, October 8, 2020 

    Washington State University Extension (2020-10-08)
  • CloverGram, October 2, 2020 

    Washington State University Snohomish County Extension (2020-10-02)

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