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Free Picture: Rust Spore Test Site
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Description Stephen Ausmus image three weeks after yellow starthistle was inoculated with rust spores, ARS plant pathologist Bill Bruckart (left) and California Department of Food and Agriculture plant pathologist Dale Woods inspect one of 20 test sites to learn about the pathogen's performance.
Keywords agricultural research, agriculture, ars, bill bruckart, caucasian, caucasian men, caucasians, dale woods, department of agriculture, farmers, field research, male, men, people, plant pathologist, plant pathologists, rust spores, starthistle, two men, two people, us department of agriculture, usda, yellow starthistle, farmer, free photography, free photo, free photos, free picture, free pictures, free image, free images
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