Crepe Myrtle is deciduous. Published January 28, 2010 By CHRIS BREWER. The leaves on my crape myrtles have curled up and turned white. If the leaves still retain some green coloring and the black portions are mainly along the edges, the crepe myrtle may be suffering from leaf scorch which is not a true disease but is caused by improper watering. Cercospora leaf spot is a bigger problem in areas with high humidity than it is in other areas. Their normally flat leaves have started to deform, fold inward and curl even though I am sticking with the same watering and maintenance routine I've had for years. Do Crape Myrtles Lose Their Leaves in the Winter?. If this is happening to your crepe myrtle trees, are they still healthy? ... white crape myrtle can help a walkway or other parts of a … What can I do? Powdery mildew is the most common crepe myrtle disease. These trees do need to be watered daily for the first few weeks after planting, in order to help them establish a good root system. Many plant disorders cause leaves to change color, but few cause them to turn black. Photo by HBarrison./em The leaves on a Crepe Myrtle turning black. Aphids and azalea bark scale feed on the sugars produced by Crepe Myrtles. A cold snap may be the culprit. The Cercospora leaf spots form on crape myrtle and other types of plants due to water drops from rain or irrigation that sit on leaves during hot and humid conditions. However, the Crape Myrtle does boast a higher resistance to pests and diseases than other flowering tree varieties, and when they are affected, the issues are easy to mediate quickly. But crape myrtles are so … If … By this time it is to late for the existing leaves to recover. Learn tips for creating your most beautiful (and bountiful) garden ever. Stay ahead of the game. Patches of white to grayish powdery growth occur on the surfaces of leaves, flowers and new shoots. Why Are My Houseplant's Leaves Turning Brown? Get them off your plant with strong jets of hose water or by bringing in hungry ladybugs. Look carefully at the crepe myrtle foliage for tannish spots on the leaves, pinpoints of red or white moving about the leaves and/or tell-tale cottony webs on the underside of leaves. D.F., Houston. Curl up with a classic! The disease is most serious in shady, damp locations, especially where plants are crowded … Plant your tree (Gardenality has great articles on planting and care of your crape myrtles) in a well drained soil and keep it moist not wet.) Northerners who grow the bush (but it is not nearly as popular in the North) are far less likely to experience a problem with their crepe myrtles drying out. Like all trees, Crape Myrtles can develop fungus or mildew on their leaves. Inspect them on a daily basis. As the fungus spreads, it can cause new affected growth to die, with leaves curling and dropping. The insects’ digestive systems do not process all of the mat­er­ial they eat. Heavily infected flowers may fail to open. In the case of brown spotting, give your bushes plenty of space (to promote good air circulation) when you plant them, and prune off (and properly dispose of) affected branches (to prevent transmission of the fungus) to ward off Cercospora leaf spot. Spots or White Powder on Crape Myrtle Leaves? A: Burned edges of leaves can be caused by several things including too much fertilizer, lack of water, root diseases or too much water. Remember that most ornamental plants are broad-leafed and can be affected by phenoxy herbicides.Click below for more videos on Crape Myrtle:How to Correctly Prune a Crape Myrtle: https://www.youtube.com/watch?v=BONt3__hkKkBeetles on a Crape Myrtle: https://www.youtube.com/watch?v=XWLspwWbXJQCrape Myrtle bark scale: https://www.youtube.com/watch?v=6b8Tvh_JbkYSubscribe now to Family Plot for more gardening videos like these!https://www.youtube.com/channel/UC1yWvD192f3gHZ08_T-k5lQVisit familyplotgarden.com for more information! - YouTube Problem is, the tree already had some symptoms of shock from all of the rain, but it seems to be getting worse now. Browning due to a moderate cold snap ruins the appearance of the plant, but it probably will not kill your shrub. How long does it take a tree to recover from transplant shock? have developed brown leaves, the first thing to look at is the calendar. Want to see more Southern Living videos? Shocked trees also need a little TLC to get them back on track. Since I live in northeast Texas, they told me I had to water it nearly every day for two weeks and then as often as possible during the hot summer. For potted trees, check soil moisture. There are two types of Crape Myrtle frequently planted; there is Lagerstroemia indica and Lagerstroemia hybrid (indica x fauriei). Introducing "One Thing": A New Video Series, Red Rocket: Red flowers; 10 to 15 feet tall. Learn how to save a dying transplanted tree and about tree transplant shock recovery. The curling leaves are probably caused by lawn chemicals, probably a phenoxy herbicide. Q&A - Why does my Crape Myrtle have curling leaves? UT Extension Agent Chris Cooper says that when herbicide damaged leaves curl up it is Dicamba, when the leaves curl down it is 2,4-D. Why Are My Emerald Cedar Leaves Turning Brown? Leaves dropping after transplant? The leaves begin turning colors, curling and falling in late September. If you suspect that drought is the problem, water the plants enough to keep the soil evenly moist but not wet. Extreme cases can cause extensive damage. If the leaves on your crepe myrtles are turning brown you will need to do some sleuthing to determine the cause. When a small amount of this herbicide from careless spraying or drift gets on a plant like crape myrtle it … Raking and removing infected fallen leaves is a good idea. When leaves are uniformly green, open, upright and growing vigorously, your plants are well-cared for and healthy. If your crepe myrtle shrubs do not seem to be performing as they usually do, start asking questions. Here is the good news: Neither case of brown leaves (either in summer or in spring) need be fatal to your crepe myrtle. Nonetheless, they do need water, and they may dry up during especially hot summers with little rainfall. Short of growing your bush in a sheltered area (which requires foresight), there is not much that you can do to prevent the problem of browning in this case. Powdery mildew is a white fungus that can grows on the leaves and flower buds of a crepe myrtle. A. Crepe Myrtle Leaves Turning Brown in Summer, Crepe Myrtle Leaves Turning Brown in Spring, Your Crepe Myrtle Shrub Is Not Necessarily Going to Die, Some Crepe Myrtles More Resistant to Leaf Spot Than Others. When a small amount of this herbicide from careless spraying or drift gets on a plant like crape myrtle it causes this sort of leaf curling. You can get this at garden centers. Q. Overwatering, overfertilization, and poor air circulation can contribute a crape myrtle’s susceptibility to the fungus. Reasons for crepe myrtle leaves turning brown are related to the time of year when the problem occurs. emThe isle of Santorini. Not all crepe myrtle shrubs are alike. An untimely drop in temperature after the tender leaves have made their appearance can spell death for them. What Are Those Black Spots? Powdery Mildew: Powdery mildew is one of the most common problems of crape myrtle, and it is caused by the fungus Erysiphe lagerstroemia. Not sure if your trees in shock or dead? In most instances, infected leaves develop a yellowish to orangey red coloration then fall off. Crepe myrtle is not as tolerant of cold weather as many bushes are. Fortunately, there are several powdery mildew-resistant cultivars of crape myrtle. If you are wondering why your crepe myrtle shrubs or trees (Lagerstroemia spp.) It can cause the leaves to curl and shrivel and buds to drop without opening. Growing Natchez Crepe Myrtles: Care, Pruning Tips. Leaves of Crepe Myrtle Not Growing on a Few Branches. These are aphids, which suck sap from leaves and stems of crape myrtles, causing them to curl and turn yellow. Phenoxy herbicides are frequently sprayed on lawns to control broadleaf weeds. Symptoms include scales on flowers and cottonlike white or … Crepe myrtles come in all different colors and heights, so find the one that's right for you. I have several different species of plants around the house that seem to have the same problem. Next summer, spray according to label directions with a fungicide called Immunox. Yes, this is like caring for a pet! After this three week period of constant watering, crape myrtle trees can be watered just enough to keep the soil from drying out completely. Here are a few things you can try: The leaves on your plants are trying to tell you something. No matter where you live in the South, crepe myrtles should have bloomed by now. If you are seeing brown leaves on your crepe myrtle plant in the spring, it could be due to your area experiencing a cold snap. High temperatures especially along with drought conditions can cause yellowing. 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