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Overview of Plant Disease Diagnoses for 2014

Of 113 samples sent from Washington county in 2014, 70% of them were nearly equally divided between fungal diseases and abiotic issues. For abiotic issues, some of the causes included heat stress, sunscald, chemical injury, winter injury, or a combination of these. Fungal diseases included Phytophthora on woody ornamentals, Calonectria box blight and Volutella blight on boxwood, and Pythium root rot on herbaceous and woody ornamentals.