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The first trial of the first All-American knapsack sprayer; Mr. Galloway operating it in the vineyard back of the Department in 1891. See Journal Mycol. V. VII, 1894, p 39.

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Citation

Unknown. “The first trial of the first All-American knapsack sprayer; Mr. Galloway operating it in the vineyard back of the Department in 1891. See Journal Mycol. V. VII, 1894, p 39..” Special Collections, USDA National Agricultural Library. Accessed December 1, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/272.