Powdery Mildew Crepe Myrtle Diseases Pictures
Diseases powdery mildew on crape myrtle fig.
Powdery mildew crepe myrtle diseases pictures. Crape myrtles need plenty of sun and air circulation to help fight this disease. One of the most common diseases that affects crepe myrtle is powdery mildew. As the infection spreads these tiny spots become larger. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the.
Powdery mildew occurs most often on young actively growing plant tissues fig. Powdery mildew spores can germinate and infect crape myrtle in the absence on free water on the plant tissue as long as there is adequate humidity in the air. It causes white or grayish powdery coat on the leaves. More information on successfully growing crape myrtles is available in hgic 1008 crape myrtle and hgic 1009 crape myrtle pruning.
The information given herein is for educational purposes only. Powdery mildew spores are disseminated by wind. Soon the powdery mildew spreads over the entire leaf. Older leaves are less likely to be affected but can become infected under conditions favorable for the disease.
The spores and mycelia of powdery mildew are sensitive to extremes of heat and sunlight. It can completely cover and severely damage new plant growth. Under favorable conditions infection may occur as few as 3 to 5 days after the spore lands on the crape myrtle.