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    Byther, Ralph S. (28)
    Davidson, Roy M., 1939- (28)
    Chastagner, Gary A. (1)Goss, Roy L. (1)Haglund, William A. (1)SubjectFusicladium. (1)Peas--Diseases and pests. (1)Phytopathogenic fungi. (1)Potato scab--Control. (1)Potatoes--Diseases and pests. (1)Streptomyces scabies. (1)Willows--Diseases and pests. (1)... View MoreDate Issued1990 - 1997 (10)1980 - 1989 (6)1976 - 1979 (12)

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    Apple anthracnose (bull's eye rot) 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1992-01)
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    Plant diseases: apple anthracnose (bull's eye rot) 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1982-07)
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    Plant diseases: ophiobolus patch disease of turf 

    Byther, Ralph S.; Chastagner, Gary A.; Goss, Roy L.; Davidson, Roy M., 1939- (Pullman, Washington : Washington State University. Extension., 1982-02)
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    Club Root of Cabbage and Other Crucifers 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1990-11)
    Crucifer plants [cabbage, cauliflower, Brussels sprouts, broccoli, kohlrabi, kale, collard, Chinese cabbage, mustard and some turnips, rutabagas, and radishes] are susceptible to the fungus Plasmodiophora brassicae. Authors ...
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    Raspberry and Strawberry Root Rots in Home Gardens 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1992-02)
    Root rot is common in home gardens. Here is an easy to follow discussion of symptoms, causes, and control methods. 2 pages.
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    Verticillum Wilt of Maples 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1997-10)
    This disease is common on maples. It is caused by the fungus Verticillium albo-atrum. The symptoms may be stunted, wilted, or yellowed leaves and olive-green streaks in the wood. Cultural control, such as pruning, may help ...
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    Lophodermium Needle Cast of Pine 

    Byther, Ralph S.; Davidson, Roy M., 1939- (Pullman, Washington : Washington State University. Extension., 1995-08)
    This disease is caused by a fungus and affects Scotch pine, red pine, and Monterey pine more than other Pinus species. Symptoms are spots on the needles and eventual needle death. Cultural and chemical control measures are ...
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    Armillaria (Shoestring) Root Rot 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1994-05)
    Shoestring rot is caused by a group of fungi known as Armillaria. Symptoms include stunting, yellowing or browning of leaves or needles, white growth on lower trunk and roots, and string-like strands in the soil surrounding ...
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    Soil Treatment Procedures for the Home Gardener 

    Byther, Ralph S.; Davidson, Roy M., 1939- (Pullman, Washington : Washington State University. Extension., 1986-09)
    This guide for the home gardener describes procedures for treating small areas of soil to kill or reduce plant disease organisms. Includes heat treatment and fumigation. 4 pages.
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    Marssonina Leaf and Twig Spot on Willow 

    Davidson, Roy M., 1939-; Byther, Ralph S. (Pullman, Washington : Washington State University. Extension., 1994-03)
    This fungal disease affects foliage on many kinds of willow. Although the foliage is unsightly, the growth of the tree is not affected. Good sanitation practices are the only recommended control, though spring fungicide ...
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