1. The sclerotia structure acts as the primary inoculum in affected fields. 2. These cells then overwinter and serve as inoculum the following spring. 3. Disease inoculum is reduced by long rotations with nonhost crops. 4. A plastic spreader is also used to spread the inoculum evenly. 5. This results in the decline of the egg inoculum in the soil. 6. General sanitation practices have also reduced the spread of inoculum . 7. The oospores are the main source of the primary inoculum of this disease. 8. Bacteria present in plant debris can serve as a source of secondary inoculum . 9. Hence, the presence of these plants may increase the supply of inoculum . 10. Conidia produced during spring and summer are the major source for primary inoculum .
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