Now showing items 1-7 of 7

  • 2019 crop protection guide for tree fruits in Washington 

    DuPont, S. Tianna; Beers, Elizabeth H. (Elizabeth Hull), 1955-; Nottingham, Louis, 1972-; Grove, Gary G.; Amiri, Achour; Daniels, Catherine H., 1957-; Schmidt, Tory; Kangiser, Joel; Klaus, Michael; Taylor, Lagene F.; Steffen, Gerald R.; Jones, Wendy (Pullman, Washington : Washington State University Extension, 2019-03)
  • Apple replant disease 

    Hewavitharana, Shashika Shivanthi, 1985-; DuPont, S. Tianna; Mazzola, Mark, 1960- (Pullman, Washington : Washington State University Extension, 2019-02)
    Replant disease is a widespread problem in areas that grow tree fruit and nuts, greatly impacting intensive apple production. It is characterized by reduced productivity in fields repeatedly planted to the same or closely ...
  • Compost use for tree fruit 

    DuPont, S. Tianna; Granatstein, David (Pullman, Washington : Washington State University Extension, 2020-01)
    Compost can help improve soil quality and nutrient, water, and pest regulation. High-quality soil holds water and nutrients like a sponge, slowly releasing them over time to meet tree needs. High-quality soil can also ...
  • Phytophthora crown, collar, and root rot of apple and cherry 

    DuPont, S. Tianna; Hewavitharana, Shashika Shivanthi, 1985-; Mazzola, Mark, 1960- (Pullman, Washington : Washington State University Extension, 2019-02)
    Phytophthora rots can girdle the scion (collar rot), damage the rootstock just below the soil surface (crown rot), and cause necrosis and death of fine roots (root rot). While generally considered a larger problem in ...
  • Soil biota in orchards 

    DuPont, S. Tianna (Pullman, Washington : Washington State University Extension, 2019-04)
    The soil is alive. In just one acre of agricultural soil there can be 5,000 pounds of bacteria and fungi, 800 pounds of arthropods, 300 pounds of protozoa, and 100 pounds of nematodes. These organisms provide many ecosystem ...
  • Soil health in orchards 

    DuPont, S. Tianna; Granatstein, David; Sallato, Bernardita (Pullman, Washington : Washington State University Extension, 2020-02)
    Orchard soil health, or soil quality, is the capacity of soil to support productive trees over time without negatively affecting the surrounding environment. Soil health is influenced by interacting biological, physical, ...
  • Tree fruit soil fertility and plant nutrition in cropping orchards in Central Washington 

    Sallato, Bernardita; DuPont, S. Tianna; Granatstein, David (Pullman, Washington : Washington State University Extension, 2019-12)
    Healthy trees need healthy roots to take up water and nutrients; healthy soils to provide water, nutrients, and protection from plant pathogens; sufficient water; and exemplary horticulture. When considering tree nutrition, ...