by R. H. Callihan
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Nightshade
Sulfur cinquefoil (Potentilla recta L.)
The hard seed mechanism in Convolvulus a...
Studies on soil actinomycetes in relatio...
Potato scab
Common scab and its control in seed-pota...
Powdery scab of potatoes (Spongospora su...
The grain smuts and potato scab
Seed and soil treatment for the control ...