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Subjects
Plant diseases, Crop losses, Diseases and pests, Indexes, Research, Tomatoes, Mosaic diseases, Muskmelon, Seed treatment, Seeds, Agricultural extension work, Agriculture, Congresses, Corn, Farm life, Flax, Forecasting, Hevea, Late blight of potato, Plant quarantine, Potato wart, Soybean, VegetablesPlaces
United States, Imperial Valley (Calif. and Mexico), Northeastern States, Southern States, West (U.S.), Western HemisphereID Numbers
- OLID: OL7223270A
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