Biodiversity Heritage Library

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The clover and alfalfa seed chalcis-fly

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By: Urbahns, T. D. (Theodore Dietrich),

Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920

Holding Institution: U.S. Department of Agriculture, National Agricultural Library
The spike-horned leaf-miner, an enemy of grains and grasses

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By: Luginbill, Philip, - Urbahns, T. D. (Theodore Dietrich),

Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916

Holding Institution: U.S. Department of Agriculture, National Agricultural Library