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Influence of Nitrogen Rate on Cercospora Leaf Spot and Growth of Crapemyrtle

A. K. Hagan, J. R. Akridge, and K. L. Bowen

December 2009


Few crapemyrtle cultivars are resistant to powdery mildew and Cercospora leaf spot. While fungicides are a control option, bur require considerable time and resources. While not as efficacious as a fungicide, adjusting N rates may be an alternative for managing these diseases on crapemyrtle. The objectives of this study were to evaluate the impact of N rate on the development of powdery mildew and Cercospora leaf spot on crapemyrtle in a simulated landscape planting and determine their effects on plant growth.


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