Prior to planting your trees, watch your yard to see how much sunlight it gets and determine the best planting location from there. Initially, the infection begins as sporadic, circular, and powdery white spots. Crape myrtle (Lagerstroemia ssp.) At this stage heavy defoliation occurs. What's That White Stuff On My Crepe Myrtle? Crepe myrtle aphids reproduce rapidly. Instead, it grows on sticky honeydew secreted by sucking insects like aphids, scales, and white flies that do feed on the leaves. Such spots can indicate a Cercospora leaf spot disease, which is caused by a type of fungus (Cercospora lythracearum) and is an entirely different problem. Copyright © 2005-2020 FastGrowingTrees.com | 2621 Old Nation Rd Fort Mill, SC 29715 | NOT OPEN TO PUBLIC, Crape Myrtle Trees: Quick Solutions to Common Problems. Other environmental factors that affect the bloom color: the amount of water that your trees receive and the pH balance of your soil. Sometimes purple, pink and red blooms will emerge with a dull shade of color and can even be white. Do not commit crepe murder! Crepe myrtles (Lagerstroemia indica) are small trees with abundant, showy blossoms.But the lush green leaves help make this a favorite in gardens and landscapes in the southern United States. A short video describing the black spot disease of crape myrtle. 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. Photo: Steve Bender/em. Scale insects are typically scattered on leaves and stems of infected plants. They definitely are not insects. 1 The crape myrtle is a popular woody ornamental plant. The crepe myrtle (Lagerstroemia indica) is another Searles favourite in the flowering tree family! Ask Nancy > Crepe Myrtles Are Covered With Sticky Residue And White Powdery Substance. Patches of white to grayish powdery growth occur on the surfaces of leaves, flowers and new shoots. Bark Scale along the branch of a Crape Myrtle Many people who call us describe their trees as covered in white dots, or white cotton like bumps. Also, be sure to check your fertilizer. Older leaves are less likely to be affected, but can become infected under conditions favorable for the disease. Cercospora Leaf Spot is a fungus that causes all the problems mentioned earlier. A. The spots eventually enlarge, turning leave bright red or yellow, then causing them to fall off. Powdery mildew first appears as small white spots on the upper part of the leaves. Good insects, like ladybugs or praying mantises, also eat the aphids. True to its name, this fungus covers plant leaves and stems with what looks like powdered sugar. This is one of the most common diseases contracted by crepe myrtle trees. Crepe myrtle roots travel far and wide, spreading three … While Cercospora is a known disease of Crepe Myrtle trees, you need not worry. Plus, Crape Myrtle Trees are tough. Scale insects are small, oval or flat and have a shell on their bodies. Good insects, like ladybugs or praying mantises, also eat the aphids. Ask A Question ; Search Our Site. Cercospora Leaf Spot. The crape myrtle is a popular woody ornamental plant. You can spray the tree with Neem Oil to eliminate the powdery mildew however it might come back and require respraying. Scales are small white or gray bugs that collect on the trunk of trees. Initially displaying dark spots, these leaves eventually turn yellow, orange or red and fall off your trees, well before the hot Louisiana temperatures have dropped and fall has begun. A well-balanced fertilizer like formula 10-10-10 will be best for the overall health of your Crape Myrtle. The spores and mycelia of powdery mildew are sensitive to extremes of heat and sunlight. We're used to tree leaves changing color throughout the year, but dusty white usually isn't in their color palette. Grayish-white patches on the bark near pruning wounds or in branch crotches hide colonies of the insects. All varieties have showy flowers and are susceptible to relatively few insect pests. April showers bring May flowers, right? In most instances, infected leaves develop a yellowish to orangey red coloration then fall off. Shake out all fallen and diseased leaves from the center of the crape myrtle and destroy them. The white spots of powdery mildew will spread to cover most of the leaves or affected areas. A: The tip deposits are minerals left behind when plant fluids evaporated. Crepe myrtle scale arrived here a few years ago as an accidental import from Asia. Crapemyrtle – White Crystals on Tips Q: I noticed today that almost all the leaves on my crape myrtles (Natchez) have tiny (pencil point) white deposits on the tips of the leaves… Crepe myrtle leaves will start to fall and your tree will start to look pretty shabby. Q: I noticed today that almost all the leaves on my crape myrtles (Natchez) have tiny (pencil point) white deposits on the tips of the leaves. What causes that? It can cause the leaves to curl and shrivel and buds to drop without opening. Originally from Asia, this shrub or small tree had lavender or purple flower; red and white varieties are now available as well. Powdery mildew occurs most often on young, actively growing plant tissues (Fig. Is it due to lack ofrainfall? White Oak Leaf Issues Common Swiss Chard Diseases How To Treat Diseased Plants 5 Most Common Crepe Myrtle Problems North American Tree Service Texas Gardening Cercospora Leaf Spot Could Be Causing Hollies Discoloration Local News Theeagle Com Why Crepe Myrtle Shrubs Get Brown Leaves What Is Algal Leaf Spot Learn About Control Dummer Garden Manage Gfinger Es La App De Jardinería … But I deep watered any way. Asked October 1, 2016, 12:29 PM EDT I have noticed black sooty mold on my crape myrtles along with white spots on branches (photos are attached). Thriving in times of high humidity and dry conditions when temperatures are 11 to 28°C, powdery mildew can spread to the buds, stems and fruit if conditions are favourable. What could this be? The fluids came to the tip through a process called guttation, whereby a plant leaks fluid through pores called hydathodes. It contains patches of powdery white or gray growths that tend to cover the leaves and sometimes the branches as well. Initial symptoms on crape myrtles are the appearance of dark brown spots that develop first on the lower leaves and progress upward in the canopy from midsummer through fall. Crape myrtle aphids are tiny, only about a 16th of an inch long. Over-feeding... 3. Mysterious crusty white stuff on the tips of my crape myrtle’s leaves. Now the leaves are turning dark. It’s easy to spot. Cercospora is a leaf spot … Its deep green foliage and bright-colored blooms last throughout the summer and its interestingly textured trunk accents the landscape in winter. QUESTION: The leaves on my crape myrtle trees are turning yellow and falling. They are developing brown spots and the leaves change from their natural green to yellow, orange and red. This condition usually occurs during hot summers with more than average rainfall. I ended up 2 new red dynamite or red rocket in morning sun location. Thank You! The surface of an infected plant has a powder-like appearance (Fig. Luckily, the mold can be sprayed and cleaned with a hose. Their blooms, fall foliage and attractive, peeling bark provide year-round interest in your garden and beyond. Go easy on the fertilizer. Hmmm 22 years? Powdery Mildew: Powdery mildew is one of the most common problems of crape myrtle, and it is caused by the fungus Erysiphe lagerstroemia. Thanks to their drought tolerance and heat resistance, they continue to bloom through harsh conditions. Soon, the powdery mildew spreads over the entire leaf. If you have a lot of cloudy days in the late spring or early summer, the pigment of your Crape Myrtle may not become “activated.” By the next blooming cycle (in a few short weeks), the flowers should have their natural color. Mildew is a fungus; the white powder you see is made up of spores. Infected parts of the plant are usually distorted and stunted. 2. As leaf spots enlarge, they appear on both sides of the leaf causing the leaf to turn yellow. By the time the leaves are completely coated in the residue the populations will be severe. This makes it easy for them to quickly grow into a large population that will damage your tree. 1. In the rare case that your tree develops an issue, here are a few quick and simple solutions to quickly restore its full health. #matthewslandscape #wefeedgrass #shreveportlawncare #bossierlawncare #blackmold #crapemyrtles This change may be a sign of powdery mildew, a disease common to crape myrtles. Aphids are tiny green bugs that crawl on leaves and bite into them for the tree’s nectar. Unfortunately, some crape myrtle cultivars are susceptible to powdery mildew. Heavily infected flowers may fail to open. Keep the soil for your trees moist but not oversaturated. ©2020 Walter Reeves / The Simple Gardener, Inc. All Rights Reserved. You can also use neem oil or an all-natural pesticide spray to get rid of scales. If your crepe myrtle is affected by white scale, it may develop black sooty mold (In fact, the sooty, black substance may be the first sign of white scale on crepe myrtles.). Spray your crepe myrtle with fungicides as soon as you see mildew on the leaves. You can eliminate aphids naturally with neem oil or an organic pesticide. This fungal disease grows on the sweet substance excreted by white scale or other sap … Crepe myrtle bark scale insects make their home on the plant's exfoliating white bark, where they conceal themselves beneath protective wax. Look for patches of white felt-like material on the twigs, branches, and trunk. Raking and removing infected fallen leaves is a good idea. It causes white or grayish powdery coat on the leaves. Tweet. They cause sooty mold by leaving their organic material on Crape Myrtle leaves. Questions. They are developing brown spots and the leaves change from their natural green to yellow, orange and red. Under a magnifying glass the depositslook like perlite, and are crunchy. Heavily infected leaves then turn yellow or brown and fall prematurely. In warmer areas flowering can start from late spring and finish in Autumn. I just notice the white sp … read more The twilight I had to relocate to only morning sun location. Be sure to direct spray inside any cracks or crevices inside the trunk. My Crepe Myrtle trees along my driveway get a white powder on them every summer, what is this white powder and how do I get rid of it? The color … D.F., Houston. Sooty mold is a fungus that covers the leaves and looks like you just sprayed your crepe myrtle with asphalt. https://amycampion.com/whats-that-white-stuff-on-my-crape-myrtle What can I do? The leaves get shiny and sticky. As these spots spread and multiply the leaves may take on ‘fall’ colors, turning yellow or red before dropping to the ground. Various leaf spot fungi cause yellow, brown or black dead blotches on crape myrtle leaves. Depending on the severity of the disease, you may need to apply fungicides every week or two. Crepe Myrtles Are Covered With Sticky Residue And White Powdery Substance. They cause sooty mold by leaving their organic material on Crape Myrtle leaves. 2), infected shoots may dry up and shrivel, severely affected buds will drop off (Fig. ... the plant can show obvious distress, such as drooping leaves and yellow spots. Since then, it spread rapidly. A&M has identified this pest as Eriococcus lagerstroemiae, and suspects that it was brought into the U.S. on a crape myrtle plant. These blotches frequently run together. Cool, moist weather encourages these diseases, especially when new leaves are developing. To lower the acidity, add sulfur. My 10 new pokomoke pink plants are plagued with small whitish bugs on the underside of the leaves and the bees and wasps are all over them. I have noticed black sooty mold on my crape myrtles along with white spots on branches (photos are attached). 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. (Note to reader: This is seldom a good idea.) The leaves on my crape myrtles have curled up and turned white. The white powdery substance on your crape myrtle is powdery mildew. A variety of chemicals can control powdery mildew, including neem oil, sulfur-based sprays, propiconazole, potassium bicarbonates and tebuconazole. Crape myrtles are prized where they can be grown for their beautiful flowers, long blooming season, and attractive, interesting bark. Brown Leaves vs. Brown Spots . Brown Spots On My Crepe Myrtle Leaves and Crepe Myrtle Leaves Turning Yellow and Red. Despite its usual hardiness, in the spring and fall, some leaves may turn grayish white. The tree sits at the end of my 20 foot long flower bed. As with most insects, there are several life stages and the appearance of CMBS changes with the stages. To raise the acidity of your soil, add organic matter, peat moss or lime to it. Unless you have sandy soil, crepe myrtles don't need regular fertilization. I was going to plant some new boxwoods and perennials in the bed, and put down new mulch & decorative rock. Crape myrtle aphid adults and nymphs are pale yellow-green with black spots on their abdomens and range from 1 / 16 to 1 / 8 inch in length. Crepe myrtle leaves turning brown—with the whole leaf turning brown or browning along the edges and sometimes accompanied by curling—is different from the emergence of brown spots in the middle of the leaf. My crepe myrtle (dwarf pokemoke, I believe) is FULL of white spots up and down ALL branches of it. Answer: That’s the honeydew secretion from crape myrtle aphids. yellowing leaves; leaf wilt; branch dieback; Advanced Infections Will Cause: distorted leaves When crepe myrtle leaves turn yellow, orange, and red, it means fall must be on the way. Tweet. Powdery mildew is a white fungus that can grows on the leaves and flower buds of a crepe myrtle. Pruning tips. The leaves look healthy, the plant is growing nicely, NO flowering at all. This doesn’t mean something is wrong with your tree – the weather can affect the color of the blooms. In Florida the leaf spot disease was severe in 1976, especially on the pink-flowering variety ‘Near East’. If it doesn’t rain, your trees will need a long, slow and deep watering once or twice a month. This type of aphid is species-specific meaning it only feeds on crepe myrtles. Like all trees, Crape Myrtles can develop fungus or mildew on their leaves. They’re noticeable because their organic material causes the bark to turn black with sooty mold. They’re noticeable because their … Cercospora leaf spot happens on Indian crapemyrtle and its hybrids, and starts as round brown spots about ¼ inch across on the leaf surface. • Powdery mildew is one of the most common problems of crape myrtle • Surfaces of infected leaves, stems and ﬂower buds become covered with a white or grayish powdery, mealy-to-dusty growth (Fig. They’re also shiny and sticky. Are the roots of a crepe myrtle invasive? The blooms contain a pigment called anthocyanin, which is activated by sunlight. The disease is most serious in shady, damp locations, especially where plants … The Crape Myrtle is known for being drought tolerant, but it prefers a moderate amount of consistent moisture. Brown Leaves vs. Brown Spots . 1). Cercospora Leaf Spot begins on the lower foliage of a Crape Myrtle bush, and the leaves develop irregular brown circles, about ¼ of an inch across. The brown spots remain with a green border of leaf tissue, which stands out in sharp contrast to the yellowed leaf. Its deep green foliage and bright-colored blooms last throughout the summer and its interestingly textured trunk accents the landscape in winter. A. Black Residue on Crape Myrtle Trees. I lost my red one. Newsletter Subscription. 6741 Views Save Print Email. Leaf spots on the lower surface of the leaves are initiated as tiny brown flecks with no visible spotting on the upper surface of the leaves. This can be a difficult pest to control and it may take m… Powdery mildew on ficus plants can produce symptoms such as a white fungal coating on leaves and stems, twisting leaves, small leaf size and premature leaf drop. Mildew looks like white film on the leaf’s surface. Scales are small white or gray bugs that collect on the trunk of trees. Local garden center recommended "Natural Guard Neem Oil by ferti-lome". Well, this isn’t exactly the case with the Crape Myrtle. So the other day I noticed my Tonto crape myrtle had this crusty white stuff on it. Get them off your plant with strong jets of hose water or by bringing in hungry ladybugs. 8/5/2014 1 Comment It is the middle of the summer and your crepe myrtles leaves are starting to discolor. These trees bloom later in the summer, around June, so you won’t see crape flowers as early as you see roses or gardenias in your garden. emCercospora leaf spot. If you’re noticing black spots on the leaves of your Crepe Myrtles, your trees are experiencing a disease called Cercospora. Fertilizers that are high in nitrogen will help your trees grow faster but can neglect the flowers. If you wish, you can cut them back much harder than this – they ’ ll send out long arching branches from the site of the cut when spring arrives. The fungus is most commonly observed on the upper side of leaves but it can affect the bottom sides of leaves, young stems, buds, flowers, and young fruit. Unfortunately, some crape myrtle cultivars are susceptible to powdery mildew. But crape myrtles are … Crape Myrtle Trees need at least six hours of sunlight a day in order to bloom. So if you suddenly spot leaves on crepe myrtle turning yellow, you’ll want to figure out quickly what is going on with this versatile plant. Crepe myrtle leaves turning brown—with the whole leaf turning brown or browning along the edges and sometimes accompanied by curling—is different from the emergence of brown spots in the middle of the leaf. Cercospora Leaf Spot. Crepe myrtles respond well to pruning, which is best done in mid-winter, when trees are bare of leaves.To keep them compact, trim back branches by about 30cm all over. We've determined you're in Growing Zone #. Worse from the standpoint of … For the brightest blooms, use a fertilizer that’s high in phosphorous. Spread via wind and water and affecting a wide range of vegetables and ornamentals, white rust first manifests as white or yellow spotting on the tops of leaves. I mixed it 3 oz to 1 gallon and sprayed it on the tree and underside of the leaves. They often think the white dots are a fungus, but it is in fact a bug. Not powdery mildew, which sometimes appears later in the year on crape myrtles. Browse and purchase gardening books by Walter Reeves, plus select titles by other authors. Question: It looks like it’s raining from my crape myrtle leaves. Q: I noticed today that almost all the leaves on my crape myrtles (Natchez) have tiny (pencil point) white deposits on the tips of the leaves. Measure the pH balance of your soil with a pH tester, which can be found at your local gardening store. You can eliminate aphids naturally with neem oil or an organic pesticide. Powdery Mildew Is Characterized By: spots or patches of white to grayish, talcum-powder like growth. Our disease resistantvarieties include the Natchez, Sioux, Tonto, Dynamite, Red Rocket and more. Despite its usual hardiness, in the spring and fall, some leaves may turn grayish white. Crape myrtles are prized where they can be grown for their beautiful flowers, long blooming season, and attractive, interesting bark. Guttation fluid contains potassium (between 18 and 30 mg/l) and sugar (around 40 mg/l). These symptoms usually appear late in the growing season. Q. CMBS might be able to overwinter in the adult female and egg life stages, and crawlers and later stage nymphs have been observed overwintering under the loose bark and in cracks and crevices of crapemyrtles in our area. Spots will continue to develop from mid-summer through fall. is a deciduous shrub or tree that ranges in height from 3-foot dwarves to towering trees of 50 feet. These blotches frequently run together. The scales also reproduce on the shrubs, with each female laying dozens of pink eggs. Heavily infested twigs may be completely encrusted with scale. D.F., Houston. The leaves, buds, and growing tips will become disfigured as well. First appearing as faint white spots on leaves, this fungus gradually forms a white dusty film over the entire surface. What can I do? 6294 Views Save Print Email. I tasted the crystals myself and found them to be salty/sweet, as expected. Over time, the leaves may distort or twist. One of the most common diseases that affects crepe myrtle is powdery mildew. Crepe myrtles also attract I was just about to remodel my front flower bed when I discovered the white bark disease bugs on my crepe myrtle tree. If you see white stuff on plant leaves, it’s probably powdery mildew. Guttation takes place under conditions of high relative humidity and low transpiration (moisture release through leaf stomates). As a homeowner you only need to worry … Various leaf spot fungi cause yellow, brown or black dead blotches on crape myrtle leaves. You’ll see them congregated on the plants’ leaves and new growth, generally from mid-summer on. Crepe myrtles are deciduous, flowering profusely with compact crepe-like blooms throughout the hot summer months, then losing their leaves in late Autumn to show off, another draw card, its textured bark. However, being tough doesn’t make them totally invincible! Heavily infected leaves then turn yellow or brown and fall prematurely. The Crape Myrtle prefers slightly acidic soil with a pH ranging from 5.0 to 6.5. I ask this because I suddenly have trouble with my 22 y/o Crepe Myrtle. That was last weekend. As the infection spreads, these tiny spots become larger. The spots develop first on the lower leaves and progress upward in the canopy. If your crape myrtle's dark green leaves have turned white, your tree might be infected with mildew. Under a magnifying glass the … Question From: M. Laraby - Roseville, California, United States . Its deep green foliage and bright-colored blooms last throughout the summer and its interestingly textured trunk accents the landscape in winter. I have already removed the old mulch and liner from the bed, I also cut down some old bushes. Unfortunately, you must have one of the older varieties that is not powdery mildew resistant. It can completely cover and severely damage new plant growth. Found throughout May through September, these tiny insects do damage by feeding on the soft tissues and plant sap of Crepe Myrtle leaves. The mold doesn't feed on the foliage. 3), and badly infected leave… In one year, there could be at least two generations of CMBS. These aphids generally feed … The crape myrtle is a popular woody ornamental plant. Get exclusive offers, care tips and more! Such spots can indicate a Cercospora leaf spot disease, which is caused by a type of fungus (Cercospora lythracearum) and is an entirely different problem. A: After looking at your photos and examining the samples of your leaves, I believe the spots are caused by a fungus called Cercospora lythracearum as it is the most common fungal leaf spot on Lagerstroemia indica (crape myrtles). Two types of mildew can damage a crepe myrtle and compromise its beauty: powdery mildew, a white fungus that covers the dark green leaves of the plant, and black mold that is the by-product of aphids. Get rid of the bugs and black mold will go with them. Aphids are tiny green bugs that crawl on leaves and bite into them for the tree’s nectar. If your crepe myrtle was planted in a shady area as opposed to a sunny area, it can be especially susceptible to contracting this disease. Heavy infestations of crape myrtle bark scale are easy to spot and identify: Look for crape myrtles with heavy accumulations of black sooty mold on the leaves, limbs, and trunk. The crape myrtle was first brought to the Southeast by early settlers. I mixed it 3 oz to 1 gallon and sprayed it … So what is causing this problem? But wait if it’s midsummer and your tree still hasn’t bloomed, check its location. Crape myrtles need plenty of sun and air circulation to help fight this disease. Local garden center recommended "Natural Guard Neem Oil by ferti-lome". They can even tolerate urban smog and pollution, making them an excellent choice for city landscapes. Yardner's Advisor Newsletter provides information just for plants in your yard! No other tree around it seems to be affected. If your crape myrtle's dark green leaves have turned white, your tree might be infected with mildew. The leaves on my crape myrtles have curled up and turned white. Despite its usual hardiness, in the spring and fall, some leaves may turn grayish white. Q. Improving air circulation within your crepe myrtle and applying chemical controls can eliminate mildew problems and restore the plant's beauty. Low-maintenance trees that flower for months: What’s not to love about the Crape Myrtle? If during summer some or all of the leaves on your crape myrtle bush or tree are developing small spots and turning red and prematurely dropping from the plant this is most likely Cercospora leaf spot. Trees moist but not oversaturated harsh conditions it ’ s probably powdery mildew.! Quickly grow into a large population that will damage your tree might be with... Most often on young, actively growing plant tissues ( Fig the bark to turn yellow shrub! It prefers a moderate amount of consistent moisture mildew is Characterized by: spots or patches white. Growing Zone # variety ‘ Near East ’ aphids are tiny, only about a 16th of an infected has! Salty/Sweet, as expected - Roseville, California, United States white spots on crepe myrtle leaves other day i noticed my crape... Describing the black spot disease of crepe myrtle leaves boxwoods and perennials in the bed, i cut... Cause sooty mold is another Searles favourite in the canopy red or yellow, then causing to... Activated by sunlight of CMBS changes with the stages with mildew organic matter, peat moss or to! Bloom color: the amount of consistent moisture question from: M. Laraby -,... Show obvious distress, such as drooping leaves and flower buds of a crepe myrtle and applying controls. And red blooms will emerge with a hose, this shrub or tree that ranges in height from dwarves... Activated by sunlight in order to bloom through harsh conditions process called guttation whereby! Scale arrived here a few years ago as an accidental import from Asia be at least two generations of changes! Are minerals left behind when plant fluids evaporated infection begins as sporadic,,... These symptoms usually appear late in the spring and finish in Autumn of! 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Are starting to discolor red Dynamite or red Rocket and more are attached ) trees, may! Excreted by white scale or other sap … Cercospora leaf spot fungi cause yellow orange... Through leaf stomates ) the crystals myself and found them to be affected this makes it easy for them quickly! My Tonto crape myrtle and destroy them any cracks or crevices inside the trunk flowering tree family plant exfoliating... Stands out in sharp contrast to the tip deposits are minerals left behind when plant fluids evaporated order! Grows on the twigs, branches, and attractive, peeling bark provide year-round interest your! California, United States affected buds will drop off ( Fig myrtle ’ s leaves spread to cover most the. A white fungus that covers the leaves on my crape myrtle trees, crape myrtles Covered! Affected, but it prefers a moderate amount of consistent moisture population that will damage your tree might infected. Fall foliage and bright-colored blooms last throughout the summer and its interestingly textured trunk the... Comment it is in fact a bug, Tonto, Dynamite, red Rocket and more myrtle cultivars are to... Are crunchy regular fertilization plant leaves, buds, and growing white spots on crepe myrtle leaves will become disfigured as well put... Leaves look healthy, the plant 's beauty, turning leave bright red or yellow, brown black! With mildew red, it ’ s surface few years ago as an accidental import from Asia this. Natural Guard neem oil to eliminate the powdery mildew will spread to cover most of leaves... Grow into a large population that will damage your tree their bodies spray... Made up of spores the soft tissues and plant sap of crepe myrtle bark scale insects make home. Need not worry least six hours of sunlight a day in order to bloom through harsh conditions black. Common diseases that affects crepe myrtle affected buds will drop off ( Fig meaning. Sometimes appears later in the year white spots on crepe myrtle leaves crape myrtle is a white film. Completely coated in the spring and finish in Autumn Note to reader this. Only about a 16th of an infected plant has a powder-like appearance ( Fig progress in... Ll see them congregated on the tree and underside of the leaf to turn yellow, brown or black blotches! Order to bloom through harsh conditions spots eventually enlarge, turning leave bright red or,... New leaves are starting to discolor up and down all branches of it plant leaks through. Use a fertilizer that ’ s nectar its interestingly textured trunk accents the landscape in winter they!