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Wilson, H. A.
Remove constraint All Creators: Wilson, H. A.
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Bacteriology, Agricultural.
Remove constraint All Subjects: Bacteriology, Agricultural.
Subject Topical
Beans--Diseases and pests.
Remove constraint Subject Topical: Beans--Diseases and pests.
Subject Topical
Fire-blight.
Remove constraint Subject Topical: Fire-blight.
Subject Topical
Plant exudates.
Remove constraint Subject Topical: Plant exudates.
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