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Milberger's Nursery and Landscaping
3920 North Loop 1604 E.
San Antonio, TX 78247
210.497.3760
charlesmartelli@milbergernursery.com
Open 9 to 6 Mon. through Sat.
and 10 to 5 on Sun.
Three exits east of 281, inside of 1604
Next to the Diamond Shamrock station
Please click map for more detailed map and driving directions.
QUESTION: I
been having problems all summer with some of my crape myrtle losing
its leaves. It looks like fall, the plants are half bare. The
leaves turn yellow, then dark and fall off. In addition, they
have not been ANSWER: This looks like Cercospora leaf spot to me. It is favored by humid climate, frequent leaf wetness from rains, and poor drying conditions (crowding, dense canopies, etc.), which occurred in much of TX in the summer of 2007. This disease causes yellow spots that eventually turn necrotic and then defoliation is severe. The fungus is often visible only with magnification (clusters of black conidiophores on the leaf surface producing white to gray spores that may be quite obvious after periods of high humidity.). Compare photos: http://www.aragriculture.org/horticulture/ornamentals/crapemyrtle/fungal_disease.htm http://www.clemson.edu/crapemyrtle/graphics/cercospora_1.jpg
http://www.ag.auburn.edu/aaes/communications/highlights/summer98/crapemyrtle.html (good data on variety differences) Mark C. Black, Extension Plant Pathologist |
