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Diseases & Disorders

Featured stories covering diseases and disorders appear in this issue.

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Glory be

February 15th, 2011|0 Comments

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Gordon Goodwin’s cherry orchard at Stemilt Hill, near Wenatchee, Washington, is in one of Washington’s later cherry districts. So, as he’s updated his orchard over

WA 2 ready for commercial plantings

February 15th, 2011|0 Comments

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Washington growers can now obtain licenses to plant WA 2 on a commercial basis. WA 2 is the first apple variety from Washington State University’s

Good Job

February 15th, 2011|0 Comments

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John Carter crowned king
The Dalles, Oregon, cherry grower John Carter was named 2010 Cherry King during the annual Cherry Institute meeting held in Yakima, Washington.

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Washington’s grape disease worries grow

February 15th, 2011|0 Comments

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Symptoms of grape fanleaf disease (shown on the leaf on the left) include vein banding and yellowing, possibly resembling herbicide-damaged leaves. Washington

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Last Bite — Discovering Gold

February 15th, 2011|0 Comments

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Top: The russet-resistant Smoothee, discovered in 1958, is the widest planted strain of Golden Delicious in the United States. Photo courtesy of Willow Drive Nursery

Resistant rootstocks key to surviving fireblight

February 15th, 2011|0 Comments

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Within the next two years, Cornell University plant pathologist Herb Aldwinckle hopes scientists and the tree fruit nurseries will have solved the problems of propagating

Tackling scab resistance

February 15th, 2011|0 Comments

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Apple growers in the Midwest who stuck by the “old ways” of applying fungicides have not faced the problem of apple scab becoming resistant to

Scab-resistant varieties need protection, too

February 15th, 2011|0 Comments

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When apple breeders in New Jersey, Indiana, and Illinois came together in 1926 to form the Purdue-Rutgers-Illinois university collaboration called PRI, their ­number-one goal was

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Opportunistic fungi

February 15th, 2011|0 Comments

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Disease organisms invade injured tissue and develop cankers that release spores. Some red strains of McIntosh are susceptible, for reasons unknown, to opportunistic diseases that

Watch for crown gall and vine decline

February 15th, 2011|0 Comments

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Vineyardists in the Pacific Northwest have been relatively lucky regarding the number of grape diseases they have to worry about. But recent experiences indicate that

BUYER BEWARE: Certified may not be clean

February 15th, 2011|0 Comments

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Recent Washington State grower experiences of finding disease in a vineyard planted with certified stock have highlighted the weaknesses of state plant health certification programs

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A program for scab control

February 15th, 2011|0 Comments

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Photos courtesy of kerik cox, cornell university

Growers producing apples in the cool, damp northeast quadrant of the United States need to take a step-by-careful-step approach

No apple releases imminent

February 15th, 2011|0 Comments

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Washington State University’s apple breeder, Dr. Kate Evans, is not recommending that the university release another variety for at least a year or two.

The breeding

Little cherries, little flavor

February 15th, 2011|0 Comments

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The cool weather of 2010 highlighted a growing concern about little cherries showing up in some orchards. Follow-up testing by Washington State University confirmed that

Education for migrant families

February 15th, 2011|0 Comments

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Coordinators of a migrant education program in Yakima, Washington, are hoping that fruit growers will encourage their employees and their families to take part.

The Ready

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Get it right at planting

February 15th, 2011|0 Comments

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To achieve a yield of 50 to 70 bins per acre, the canopy of a new orchard must be established by the third season after

More export focus needed

February 15th, 2011|0 Comments

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Because of an increasingly competitive U.S. market, the salvation of the Washington apple industry will be overseas markets, and the industry will need to become

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Export funding increase unlikely

February 15th, 2011|0 Comments

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Todd Fryhover, president of the Washington Apple Commission, is concerned about a possible decrease in federal funding for export promotions.
Photo by Geraldine Warner

Since generic apple

WA 2 traits, evaluation and commercialization

February 15th, 2011|0 Comments

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The evaluation and commercialization process
Phase 1:     Initial seedling selection and evaluation by WSU
Phase 2:    Small-scale on-farm trials with five trees at about two sites
Phase