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Now showing items 21-30 of 77
Plant diseases: crown gall
(Pullman, Washington : Washington State University. Extension., 1994-11)
This is a disease of roots and stems and occurs on a large number of plants. In Washington, it's probably most serious on cherries, apples, and a few other tree fruits. It's also a problem on roses and some other ornamental ...
Plant diseases: sclerotinia stem rot on potato
(Pullman, Washington : Washington State University. Extension., 1980-12)
Plant diseases: crown gall
(Pullman, Washington : Washington State University. Extension., 1969-05)
Plant diseases: corn smut
(Pullman, Washington : Washington State University. Extension., 1967-01)
Potato diseases in Washington
(Pullman, Washington : Washington State University. Extension., 1969-06)
Plant diseases: rusts of ornamental evergreens
(Pullman, Washington : Washington State University. Extension., 1972-06)
Plant diseases: perennial canker and bull's eye rot of apples
(Pullman, Washington : Washington State University. Extension., 1968-11)
Plant diseases: lilac blight
(Pullman, Washington : Washington State University. Extension., 1966-08)
Mushroom or toadstools
(Pullman, Washington : Washington State University. Extension., 1964-08)
Powdery Mildew
(Pullman, Washington : Washington State University. Extension., 1998-09)
This bulletin explains the symptoms, biology, and control of powdery mildews, which are caused by several similar fungi. Powdery mildews can affect a wide variety of plants, including ornamental flowers and shrubs, grasses, ...