. Cooperative economic insect report. Insect pests Control United States Periodicals. Figure clump of grass for populations of brown wheat Figure counting card inserted between glass slides and metal clip. White counting areas are l/4 inch Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Branch
. Cooperative economic insect report. Insect pests Control United States Periodicals. Figure clump of grass for populations of brown wheat Figure counting card inserted between glass slides and metal clip. White counting areas are l/4 inch Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Branch; United States. Plant Pest Control Division; United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. Washington, D. C. : U. S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine
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License: Licensed
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
