Powdery Mildew Of Carrot Crops: What To Do For Powdery Mildew On Carrots

By January 20, 2018Articles
By Amy Grant An unsightly, but manageable, disease of carrots is called carrot powdery mildew. Learn how to identify powdery mildew symptoms and how to manage powdery mildew of carrot plants. About Powdery Mildew of Carrot Powdery mildew is a fungal disease that is favored by dry weather with high humidity and temperatures during morning and evening hours with temperatures of between 55 and 90 F. (13-32 C.). The pathogen also infects related plants such as celery, chervil, dill, parsley and parsnip of the family Apiacae. While studies have shown that 86 cultivated and weedy plants are susceptible, a particular pathogen strain is not able to infect all host plants. The pathogen affecting carrots is called Erysiphe heraclei. Powdery Mildew Symptoms on Carrots Carrot powdery mildew presents itself as a white, powdery growth appearing on older leaves and leaf petioles. Symptoms usually appear when leaves are mature, although young leaves

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