Dorsett spraying grape vines on the grounds of the Department of Agriculture for powdery mildew. A little east of the present West Wing. Pat at the pump; Dorsett at the nozzle.

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Citation

Unknown. “Dorsett spraying grape vines on the grounds of the Department of Agriculture for powdery mildew. A little east of the present West Wing. Pat at the pump; Dorsett at the nozzle..” Special Collections, USDA National Agricultural Library. Accessed October 15, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/259.