Most Common Crepe Myrtle Problems
Crepe myrtles can be a perfect selection for smaller landscapes or suburban areas. They are available in all different sizes and colors that are some of the most vibrant blooms of all the trees. From June to August its hard to miss these bright, beautiful blooms. However, they are susceptible to a few different types of diseases and pests:
Powdery Mildew
Powdery Mildew is the most common problems that crepe myrtles carry. The fungus, Erysiphe lagerstroemiae leaves patches of grayish white powder on the leaves and flowers of the tree. If there is enough of the fungi present, the flowers may fail to bloom. This is most common if the tree is in a dark, shady and damp location.
Japanese Beetles
Japanese beetles are about an inch long and are metallic in color. The essentially feed on the foliage and can multiply enough to destroy the entire tree. Eggs are laid in the soil from June through August for them to emerge and start the cycle all over again the following year.
Aphids
Aphids feed on crepe myrtles by sucking the plant sap out of the leaves. They leave behind a liquid called honeydew. If the infestation is large enough, it will cause yellow spots to appear on the leaves and sooty mold fungi to take over.
Cercospora Leaf Spot
The fungus Cercospora usually occurs during warm, humid weather. This fungus appears in yellow spots on the top of the leaves and a greyish color of fungi on the underside of the leaves. This can result in a loss of all the foliation on the trees.
If you have a crepe myrtle in your yard that looks to have Japanese beetles or other threatening insect infestation, give us a call as soon as possible to have one of our ISA certified Arborists out to perform an evaluation on your crepe myrtle problems!
