| Disease Name | Cassava Bacterial Blight |
|---|---|
| Caused by | |
| Predisposing Environment | The disease is distributed extensively in Asia, Africa, and South America. Losses caused by CBB can reach 100% in only two or three cropping cycles if environmental conditions are favorable for disease development and no agronomic practices are adopted to control it. The disease spreads from one area to another and from one growth cycle to the next mainly through the planting of infected stakes. Dissemination also occurs over small areas through tools, insects, and rain splash. Disease severity depends on various factors such as cultivar, soil fertility, climate, and quantity of inoculum present in the area. Repeated cropping of highly susceptible varieties without rotation reduces soil fertility, which increases the crop’s predisposition to the disease. Xam excels in a humid subtropical to tropical climate. Plantations of Manihot esculenta often take place in soils characterized as arid, lacking in nutrients, and prone to erosion, especially when the cultivation occurs in sloped fields. |
| Affects Crops |
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