Crape Myrtle Bark Scale (CMBS) It is a serious threat southern crape myrtle trees. Feb 17, 2014 - Q: A couple of weeks ago you recommended tree-form crape myrtles for low maintenance. The entire tree turned black and sappy. Crape myrtle bark scale is relatively easy to iden-tify. Keep reading for tips on growing crepe myrtle trees so you can enjoy these amazing plants year round. Adult females produce a white, felt-like sac around their bodies and lay approximately 100 to 300 pink eggs inside this sac. Scrub the pests away – It may sound odd, but scrubbing the tree will remove many of … Keep them healthy by properly mulching, watering, fertilizing and pruning. Adult females are felt-like white or gray encrustations that stick to crape myrtle parts ranging from small twigs to large trunks. Green Stuff on Crepe Myrtle Bark. is a deciduous shrub or tree that ranges in height from 3-foot dwarves to towering trees of 50 feet. UT Extension Agent Chris Cooper and Mike Dennison show how to use a soil drench to treat Crape Myrtle Bark Scale. When crushed, these scales exude pink “blood”-like liquid. Up close, CMBS is white t… The once-yearly drench may be applied later in the year as long as it is done before the tree begins to lose its leaves. Generic versions of imidacloprid are available. I went to several local garden centers, asked questions, showed pictures and nobody had a clue. : https://www.youtube.com/watch?v=_lcLQAVz58wSubscribe now to Family Plot for more gardening videos like these!youtube.com/c/FamilyPlotFor even more information, go to https://www.familyplotgarden.com 4 through 6). My husband wanted to cut them down but I insisted we wait it out until the next growing season. Black Residue on Crape Myrtle Trees. The female’s body shrinks as eggs are pro-duced. Since the initial sighting in 2004, the crape myrtle bark scale (CMBS) insect has been spreading at an alarming rate across the Southeast. Lichens thrive in sunny parts of a plant with few leaves, but are not responsible for thinning leaves. Thousands of scales encrusting the bark will literally turn it white. In its native area it can infest a number of other plants, but right now it is mostly focused on crape myrtles. Once the mated females produce their ovisacs (egg-containing capsules) and lay eggs, they die. This nonnative scale was first detected in the United States in 2004. Crepe myrtle bark scale treatment may require several different techniques, and management of the pest requires persistence. Crepe myrtle bark scale affects crepe myrtles more that are unhealthy. *Pictures of Crape Myrtle Bark Scale were provided by the University of Arkansas Cooperative Extension Service. Eggs hatch into tiny pink crawlers, and the older nymphs are pink, gray, or brown. It has been in Tennessee since about 2013. Crape Myrtle Bark Scale is a recent (2004) invasive insect from Asia. Felt scales, also called bark scales, are not considered either armored scales or soft scales. As the crape myrtle bark scale spreads throughout Texas, one of the first questions we hear is “will the scale kill my tree?” The answer appears to be “no”, at least not often. As it feeds, it excretes a sugary solution known as “honeydew” (similar to aphids, whiteflies, and other sucking insects). CMBS is a miniscule insect that appears as a felt-like gray or white crust on crape myrtle branches, often on the underside away from the sun. The scale is a sucking insect Adult females are felt-like white or gray encrustations that stick to crape myrtle parts ranging from small twigs to large trunks. Pictured: CMBS life stages encrusting a small crape myrtle branch. The best time to treat is in during spring, between April and May. , History: Master Gardeners of North Alabama. As of early 2018, crapemyrtle bark scale has not yet been reported in Florida, however, it has been found in Alabam… : https://www.youtube.com/watch?v=iYn1Nl0HcqYPruning (Not Murdering) Crape Myrtle: https://www.youtube.com/watch?v=WxLnmB7tJCoQ\u0026A - I cut down my crape myrtle. The small CMBS males are winged and will fly to find females and to mate. Crapemyrtle bark scale is an exotic insect pest from Asia. Crape myrtle (Lagerstroemia ssp.) First detected in northern Texas in 2004, CMBS is spreading throughout much of the southern U.S. Its closest cousin is the Azalea bark scale, but that species has never been associated with crape myrtle before. It’s now beyond practical control. First, they discuss the history of the crape myrtle bark scale in the United States. The crapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstromiae(Kuwana), was first confirmed in the USA in 2004 in the landscape near Dallas (TX), although it was likely introduced earlier. They are using the systemic insecticide imidacloprid. Crepe myrtle trees are popular with home gardeners for their clusters of beautiful flowers and unique peeling bark. Crape Myrtle Bark Scale (CMBS), first discovered in the Dallas, Texas, area in 2004, is threatening to turn what has traditionally been a perennial favorite with few pests into an unsightly, high-maintenance landscape tree. I … Agent Marcus Garner with the Madison County Extension Office said … Heavy infestations of crape myrtle bark scale are easy to spot and identify. Crepe Myrtle Bark Scale is caused by an insect that researchers are working to learn more about. Helpful FAQ’s and information just for our Master Gardener Interns. It started in Texas and has moved into at least 11 other states and initially it is infesting only crape myrtles. The crapemyrtle bark scale, Acanthococcus (=Eriococcus)lagerstroemiae (Kuwana), is an invasive felt scale in the family Eriococcidae (or Acanthococcidae, as the taxonomy of this family is still being debated). Crepe myrtle scale arrived here a few years ago as an accidental import from Asia. When crushed, these scales exude pink “blood”-like liquid. Be certain you carefully follow the label directions for use of imidacloprid or any other insecticide you use. This honeydew, in tu… The invasive Asian insect called “crape myrtle bark scale” first showed up in the US around 2006 but has been spread far and wide, partly via infested trees being sent to garden centers, then to gardens, then from tree to tree. Crepe Myrtle Bark Scale is a relatively new nonnative scale that was first detected in the U.S. in 2004. Crape myrtle bark scale is relatively easy to identify. The eggs remain protected within the white colored ovisacs until the crawlers (immatures) hatch and disperse onto the branches. This pest threatens to turn what has historically been a beautiful, low-maintenance landscape tree into an unsightly, high-maintenance landscape tree. Biological control is another option. Heavy infestations of crapemyrtle bark scale produce sufficient honeydew to coat leaves, stems and bark of the tree. Crepe myrtle (Lagerstroemia) is one of the best flowering trees in the world. They measure the circumference of each stem at the four-foot height and after doing some math they mix the imidacloprid concentrate in a gallon of water and pour it on the ground around the crape myrtle. In addition to the presence of these bumps there is often also an emergence of unsightly black sooty-looking mold which develops resembling black dust on the leaves and bark of the crape myrtle plant.These are the defining characteristics which make up crape myrtle ba… This is a small insect that sucks the sugary juices of the tree. As with most insects, there are several life stages and the appearance of CMBS changes with the stages. UT Extension Agent Chris Cooper and Mike Dennison show how to use a soil drench to treat Crape Myrtle Bark Scale. Southern favorites, crepe myrtles (Lagerstroemia indica), produce showy, long-lasting summer blooms. It looks like a white speck stuck to the bark of a trunk or branch. In one year, there could be at least two generations of CMBS. The plant they are treating is covered with the scale. Bark scale attacked both our beautiful Crepe Myrtles last year. Several lady beetle varieties have been found to be predators of CMBS, however, the scale multiplies faster than the beetles so beetle lures are a necessary for successful results. If you suspect that your trees are infected, use a systemic insecticide, such as imidacloprid, when trees begin to show signs of new growth in the spring (late March–May). Crape myrtle bark scale (CMBS) insect has been found in Fauquier. Crepe myrtles that are subjected to poor pruning habits (looking at you crepe myrtle toppers) are more likely to get bad bark problems. It is one of the only scales known to infest crape myrtles. It may take several months for the imidacloprid to start killing the scale, but it will be effective for about one year after application.Here are some other videos about crape myrtles:Q\u0026A – How do you remove black sooty mold from crape myrtle bark? Crapemyrtle Bark Scale: A New Insect Pest - FSA7086 Author: James Robbins, John Hopkins, Mike Merchant, Mengmang Gu Subject: Crapemyrtle bark scale, a relatively new insect appearing on crapemyrtles (Lagerstroemia) across the Southeast, including Arkansas. Crape myrtle bark scale (“CMBS,” Eriococcus lagerstroemia) was first identified in Texas in 2004, and is now a common pest. To date we’ve not been able to show any crape myrtle tree death as a result of a bark scale infestation. Colors range from red and pink to lavender and white. Slowly over the last 13 years it has moved northward and is now a serious threat to Crepe Myrtles in Hampton Roads. Crepe Myrtle Bark Scale (let’s call it CMBS) is a small insect that appears as a white or gray felt-like encrustation. How to Treat Crepe Myrtle Bark Scale. First, if the plant is small enough, spray the whole plant with a dormant oil. The crape myrtle bark scale was first confirmed in the United States in 2004 in landscape near Dallas, although it was likely introduced earlier. Maintain proper pruning methods to keep your trees healthy. It is usually best to use only one color in each cluster. If buying new plants, be sure to purchase them from a reputable nursery, and before purchase check them carefully for any signs of CMBS. This group is in the superfamily Coccoidea(scale insects) and the order Hemiptera (true bugs). Crape myrtle bark scale will appear like a white waxy crusty dot found on the tree trunk, branches or bark. That’s where we come in. Each female lays about 60 to 250 eggs, which may over-winter within their ovisacs, and then hatch during mid- to late Apri… : https://www.youtube.com/watch?v=5f2kuFSGkNgQ\u0026A - Why does my Crape Myrtle have curling leaves? If you are concerned about the effect of systemic insecticides on foraging insects, remember that when applied correctly these insecticides do not appear to be as harmful. Crape myrtle bark scale, Eriococcus lagerstroemiae, belongs to a special group of scale insects known as felt scales. Always plant crapemyrtles in full sun. This insecticide should be applied only once a year as a soil drench; however, it may be necessary to reapply in successive years. for Control of Crapemyrtle Bark Scale Cooperator – Gregg County - Longview, Texas Author - Randy Reeves* and Erfan Vafaie** Year - 2016 Gregg County Summary: In the genus Acanthaacoccus, the scale is a type of felt or bark scale. It has been verified in all areas of both the City of Huntsville and Madison County. Everyone I know complains long and loud about the annual pruning of crape When crushed with a finger, it will ooze out a pink substance. While they are fairly hardy, there are problems that can arise if you don’t have suitable information on crepe myrtle care. CMBS is a small, white or gray insect (Image 1). This new “bug”, Crapemyrtle Bark Scale (CMBS), is an insect from Asia that attacks crapemyrtles. The brilliant fall color of these trees along with the attractive bark and pretty flowers make it the perfect tree for your garden. It is one of the only scales known to infest crape myrtles. Most reports of CMBS come from the landscape, however, nursery stock can similarly be affected. Although gray-green lichens may look ugly on a crape myrtle's bark, they won't do physical harm. Sooty mold alone is not a definite indication of CMBS, but if you also find white, felt-covered scales that bleed pink when punctured, you can be sure you have found crape myrtle bark scale. CMBS, first identified in Texas in 2004, has now spread to at least 12 additional states including Alabama. With approximately 50 species, this tree is cultivated in warmer climates, and is indigenous to Southeast Asia, the Indian subcontinent, and northern parts of Australia. Since then, it spread rapidly. Crape myrtle is ideally suited for community plantings since it is long-lived, withstands droughts after becoming established, and is relatively free of disease and insect difficulties. When pressed or scraped, CMBS leaves behind a pinkish residue. The scale is a sucking insect that feeds on the phloem (sap) of plants. An Auburn study has had good results with lady beetles on small plants. Crepe Myrtle Bark Scale (or CMBS) is relatively easy to identify in heavy infestations, but can be difficult to notice in its early stages on Crepe Myrtles. If there's an ice storm, lichens can add a heavier load of ice to a limb, increasing its chances of breaking. 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. This can be a difficult pest to control and it may take m… Crape Myrtle Bark Scale - What is this white stuff on my crape myrtle trees? How do I stop the suckers? Heavy infestations of crape myrtle aphids can also cause trees to be covered with black sooty mold, but any crape myrtle that is covered with sooty mold should be carefully exa… It's easy to spot. CMBS might be found anywhere on crepe myrtles bark, and often appears near pruning sites and branch crotches of more mature wood. If you see this Crepe Myrtle Bark Scale on your Crepe Myrtle plants, there are a few things you can do. On new growth and in heavy infestations, the scales may be distributed more uniformly on the branch (Figs. 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