Control of apple powdery mildew /
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| Main Author: | |
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| Format: | Texto biblioteca |
| Language: | d |
| Published: |
Washington, D.C. : U.S. Dept. of Agriculture,
1920
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| Subjects: | APPLE POWDERY MILDEW, APPLES-DISEASES AND PESTS, United States. Department of Agriculture, |
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