September 2005

• Geographic Distribution of a Pathogen that Causes Pear Disease Identified

• New Study Compares Different Soybean Aphid Management Systems

• Researchers Evaluate Virulence of Oat Crown Rust in Mexico

• Fungi Found to Increase Incidence of Wheat Crown Rot in Oregon and Washington

• Lesion Nematodes Affecting Wheat Growth and Yield in the Pacific Northwest

• Temperature and Moisture Are Factors in the Establishment of Late Blight on Petunias

• Vineyard Weeds Found to Host Pierce’s Disease of Grapes

• Petunias Infected with Late Blight May Spread the Disease to Healthy Petunias and Tomatoes; Control Methods Identified

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