On Common Bean
Nutrient imbalances may be suspected by the type(s) of symptoms exhibited on plant tissues and entire plants in part or all of an affected field: chlorosis or yellowing; necrosis or death; accumulation of anthocyanins (reddish coloration); lack of new growth; and stunting. Soil testing before planting is recommended to determine existing soil conditions and the need for appropriate amendments.
- High soil pH
- Cold, wet soil after planting
- Low organic matter content
- High phosphorus levels
- Soil compaction, restricted root zones and poor root vigor
- Leveled or eroded soils
- Varietal sensitivity
Compendium of Bean Diseases, 2nd ed.
Courtesy of the American Phytopathological Society Bean Compendium (CIAT, A. W. Saettler) [07/10]