1140: 415­-418. Studies show that some common pesticides (e.g., pyrethroids) cause scale populations to increase. Photograph by United States National Collection of Scale Insects Photographs, USDA Agricultural Research Service, Bugwood.org. 18, No. A few of these are economically or ecologically important and include pomegranate (Punica granatum), Korean boxwood (Buxus microphylla), Chinese hackberry (Celtis sinensis), Japanese persimmon (Diospyros kaki), border privet (Ligustrum obtusifolium), and brambles (Rubus sp.). Nymphs that hatch from the eggs (a) are highly mobile and are called “crawlers” (b). Photograph by Mengmeng Gu, Texas A&M AgriLife Extension Service, Bugwood.org, #5515604. Most of the scales are likely to be on the upper branches and on small twigs. Most crepe myrtles in gardens are selections of L. indica or hybrids of that specie… Crepe myrtle scale arrived here a few years ago as an accidental import from Asia. This may occur when purchasing and moving new plants, or when hauling infested branches away from a site for disposal. Plant removal and chemical control are the most effective ways to do this. Much research is needed before cultivar or hybrid selection can be incorporated into management plans. It's easy to spot. Life cycle by April Martin and Xavier Martini, University of Florida. 2014, Layton 2015). Since 2013, in the city of Germantown, there has been a suspicious decrease in the health and appearance of one of the South’s ubiquitous flowering tree species, the crepe myrtle. 2015). Crapemyrtle bark scale is an exotic insect pest from Asia. Borden MA, Dale AG. 2014). If you live in the Mid-South, you most likely have a crepe myrtle in your yard or … 7: 33-34. doi. 2014, Layton 2015). Imports of crapemyrtle to … Proceedings of the 2015 Annual Meeting of the International Plant Propagators’ Society. This new host record is concerning, because American beautyberry is widely distributed in natural areas, roadsides, and urban sites in the southeast. Adult females are felt-like white or gray encrustations that stick to crape myrtle parts ranging from small twigs to large trunks. A relatively-new (first reports in 2004 in Richardson) insect pest, Eriococcus lagerostroemia, is attacking crape myrtles in North Texas.Crape Myrtle Bark Scale was very likely introduced from Asia and has been spreading around the Dallas-Ft. Worth area and north into Oklahoma. Some nymphs continue through incomplete metamorphosis (do not pupate) to become immobile adult females. 29 Crape myrtle bark scale (CMBS) is not deadly to most crape myrtles, but can affect the quality of the plants and greatly the health and longevity in the landscape, according to Haase. Crapemyrtle Bark Scale Resource Website (StopCMBS) Prevention of spread: Human-assisted, long distance movement of plant material via the nursery and landscape trades is most likely how this species becomes established in new regions. }�L@�%�]��H�?��G� �l Using this information, north Florida is at a moderate to high risk of becoming infested (Wang et al. Proceedings of the Southern Nursery Association Research Conference. The current chemical recommendations may be extremely toxic to bees and other pollinators that feed on crapemyrtle pollen. One of the first signs of this insect is black sooty mold on the bark and leaves. 2016). Heavy infestations are easily seen due to abundant black sooty mold and patches of the white or gray scales on the trunk, branches, and twigs of crapemyrtle. Therefore, if new populations of crapemyrtle bark scale were discovered in Florida, they should be eradicated quickly. 2014, Layton 2015). Branch dieback and stunted growth has been occasionally observed, but is probably not a primary concern. Crape myrtle bark scale is relatively easy to identify. It looks like a white speck stuck to the bark of a trunk or branch. Crapemyrtle bark scale. Crape Myrtle Bark Scale Identification and Control Crape myrtle bark scale (CMBS) is a serious new threat to southern crape myrtles. The azalea bark scale is in the same genus (Acanthococcus) as crapemyrtle bark scale and appears virtually identical. Crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), close-up of infestation. As mentioned earlier, the best way to maintain a Crapemyrtles size is to plant a known cultivar that will mature at the desired height. Local dispersal is likely a combination of the tiny nymphs walking, by wind blowing crawlers to new plants, by human activities, and by bird and mammal movement between trees (Merchant et al. The females (d-f) do not enter the pre-pupal stage, and start producing eggs following mating with the male. 3. If you find crapemyrtle bark scale in an area not yet reported, specimens must first be confirmed by the FDACS Department of Plant Industry (DPI) so that they can publish a first report and take any necessary regulatory actions. Identification of crapemyrtle bark scale is relatively simple because this is the first and only bark scale known to feed on crapemyrtle in the United States. According to Texas AgriLife Extension, this harmful pest is newly introduced from the Far East. Figure 5. The crepe myrtles are among the most satisfactory of plants for the South: showy summer flowers, attractive bark, and (in many cases) brilliant fall color make them year-round garden performers. Update on crapymyrtle bark scale. 2016). 2016). Cultural control: Some observations suggest that crapemyrtle bark scale infestations may be correlated to shade levels, adding credence to the recommendation that crapemyrtles should be planted in full-sun locations (Cai et al. These aphids feed on the leaves and tender green shoots, but not woody parts of the plant, whereas crapemyrtle bark scales are very rarely seen on the leaves (Layton 2015). Cai X, Dou H, Gu M, Merchant M, Vafaie E. 2015. It is unknown how the scale life cycle might adapt in Florida, and more research on the life cycle is in progress to see if there is a predictable pattern. Figure 7. Additional Resources 2014, Wang et al. Crapemyrtles of Florida (Lagerstroemia indica and hybrids). The IAS crape myrtle bark scale was first detected in Texas in 2004 and is now found in Oklahoma, Arkansas, Louisiana, Mississippi, Georgia, North Carolina, and Virginia. 2015). Leaves coated in sooty mold photosynthesize less, which may translate to reduced tree growth (Layton 2015, Wang et al. Dead scales are dry and flakey, but live crapemyrtle bark scales exude a ruby pink color when crushed. 2014). One adult, several pre-pupae, and many pupae of twice-stabbed lady beetle after feeding on an infestation of Acanthococcus lagerstroemiae (Kuwana). More mature scale insects are white to gray and up to 2 mm in length. Figure 12. It is one of the only scales known to infest crape myrtles. Crape myrtle bark scale (CMBS) insect has been found in Fauquier. The most effective of these seem to be twice-stabbed lady beetles, such as Chilocorus stigma and Chilocorus cacti (Cai et al. Map: https://www.eddmaps.org/cmbs/distribution.cfm. Figure 10. 2014 Census of Horticultural Specialties. Figure 4. Using this information, north Florida is at a moderate to high risk of becoming infested (Wang et al. Integrated pest management (IPM) plans to control crapemyrtle bark scale are still being developed, but may incorporate the use of certain reduced-risk insecticides that have been successfully used to control other scales, resistant crapemyrtle cultivars, and biological control. Any sharp point can be used to break open the white felt-like covering to see if a female scale is moist and alive, or has clusters of pink eggs present (Layton 2015, Robbins et al. Scientists were unsure if a nearly identical species, the azalea bark scale, had begun attacking a new host plant or if this was a newly introduced species. The eggs remain protected within the white colored ovisacs until the crawlers (immatures) hatch and disperse onto the branches. Each female lays about 60 to 250 eggs, which may over-winter within their ovisacs, and then hatch during mid- to late April to May. Photographs by Gary Knox and Ed Gilman, University of Florida. 2014). Crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), infesting young crapemyrtle branches. For small plants, inspect all woody parts before purchasing or placing in the landscape. In the future, plant selection may play an important role in management. 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). As with most insects, there are several life stages and the appearance of CMBS changes with the stages. 2016). To keep a crape myrtle at a manageable height, prune moderately by removing all twiggy growth back to main branch from which it emerged. Because crapemyrtle bark scale is not yet established in Florida, any discovered populations should be eradicated as soon as possible. Only the nymphs and adult females feed and secrete honeydew, which can lead to sooty mold growth (Wang et al. Felt scales, also called bark scales, are not considered either armored scales or soft scales. Figure 11. Photograph by Helene Doughty, Virginia Polytechnic Institute and State University, Bugwood.org, #5552233. Any crapemyrtle covered in sooty mold should be inspected to see if the cause is bark scale or another insect that also produces honeydew and sooty mold, such as crapemyrtle aphid (Tinocallis kahawaluokalani). Crape myrtle scale is the only scale insect to infest crape myrtles. 2014, Robbins et al. 2014). If an infested plant is found in a new area, it may be appropriate to destroy the plant rather than attempt treatment. Bill Sevier for the Tulsa World Biology and potential impacts of the emerging pest, crapemyrtle bark scale. Crape myrtle flowers do not have nectar, but their “feeder pollens” are … Under - magnif ication, adult females are pink and measure about 2 2014). Vol. The primary damage from crapemyrtle bark scale is aesthetic rather than being severely harmful to the tree. Once the mated females produce their ovisacs (egg-containing capsules) and lay eggs, they die. UF/IFAS Extension: Crapemyrtle Publications, https://www.eddmaps.org/cmbs/distribution.cfm, Crapemyrtle Bark Scale Resource Website (StopCMBS), Crapemyrtle Bark Scale Early Detection and Distribution Mapping System (EDDMapS), Department of Plant Industry (DPI) Sample Submission, Managing Scale Insects on Ornamental Plants, UF/IFAS Extension: Crapemyrtle Publications, Crape myrtle bark scale management updates, Crape myrtle bark scale: A new exotic pest, EHT-049, Crape Myrtle Bark Scale Identification and Control, Publication 2938, Crapemyrtle Bark Scale: A New Insect Pest, FSA7086. crape myrtle has never before been report-ed as a host plant for azalea bark scale. Crapemyrtle bark scale: A new threat for crapemyrtles, a popular landscape plant in the U.S. Insects. Department of Plant Industry (DPI) Sample Submission Although this alone will not control an infestation, it can physically remove many female scales and egg masses, making the chemical treatment more effective (Gu et al. Available online: https://www.agcensus.usda.gov/Publications/ 2012/Online_Resources/Census_of_Horticulture_Specialties/ (5 May 2018). Irish Green found and reported the first case of Crape Myrtle Bark Scale in Cleveland County August 2016 (confirmed by Plant Disease and Insect Diagnostic Laboratory at Oklahoma State University). Counties with verified reports of crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), as of May, 2018. Crape myrtle bark scale is a relatively recent pest that is affecting crepe myrtle trees in a growing area across the southeastern United States. When one of the females is crushed, a pink blood-like fluid is released. %PDF-1.5 %���� Crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), bleeds pink when damaged. Because crapemyrtle is one of the only summer-blooming trees in the landscape, reduction in flower quality and longevity due to heavy infestations is also concerning (Cai et al. A mass of pink eggs may be seen if the white covering is pulled away (Robbins et al. Since its introduction, it has spread to Louisiana, Florida, Oklahoma, California, and Arkansas. and also on American beautyberry (Lamiales: Verbenaceae: Callicarpa americana L.). Observations from McKinney, Texas suggest that Lagerstroemia fauriei and Lagerstroemia indica x Lagerstroemia fauriei hybrids also suffer high infestations (Gu et al. Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK 74078 405.744.5527. L. (Myrtales: Lythraceae) (Figure 1). Wang Z, Chen Y, Gu M, Vafaie E, Merchant M, Diaz R. 2016. Th… For example, it does not feed on crapemyrtle and is primarily a pest on azaleas (Rhododendron species). Ants have been observed on many trees with crapemyrtle bark scale infestations, but it is not known how they interact. Lady beetles always lay eggs in the presence of prey, therefore bark scale has to be there first before attracting lady beetles. Most new infestations have been found in Texas, Oklahoma, and Arkansas. initial diagnosis as crape myrtle aphid, another sucking pest of crape myrtles that is prevalent in some areas of the southern U.S. As of early 2018, crapemyrtle bark scale has not yet been reported in Florida, however, it has been found in Alabama and Georgia and is expected eventually to spread into Florida. For a complet e list of products available for managing scale insects in nurseries, see Oklahoma . CMBS proliferates on the crape myrtle plant, producing copious amounts of honeydew, which turns the leaves, branches and trunk black with sooty mold. As of spring 2018, crapemyrtle bark scale was reported in Alabama, Arkansas, Georgia, Louisiana, Mississippi, New Mexico, North Carolina, Oklahoma, Tennessee, Texas, Virginia, and Washington. 237 0 obj <>/Filter/FlateDecode/ID[<8AAF0346A0485049BE474FD0E5DE3241>]/Index[212 43]/Info 211 0 R/Length 120/Prev 872263/Root 213 0 R/Size 255/Type/XRef/W[1 3 1]>>stream Continued observation of crapemyrtle bark scale will help us determine if it is a threat to other species in North America (Knox et al. 2016. Crapemyrtle bark scale was first observed feeding on crapemyrtle in Richardson, Texas, a Dallas suburb in 2004. The insect was first noted in McKinney, Texas (self-designated as America’s “crapemyrtle city”), in 2005 and had spread throughout most of the Dallas-Fort Worth area by … Vafaie EK., and Knight CM. He was born March 3, 1979, at Ada, Oklahoma to David… WILLIAMS, Leota Feb 10, 1938 - Dec 17, 2020 However, this scale has a different host range that is not known to overlap with that of crapemyrtle bark scale. h�bbd```b``� �3@$�V�6�.�l`�1X�C0�"Y��li0�&����`� �QDrE�٦ rF�d,� b�N��M�L�ρՈ�? Additional research on crape myrtle phenology, which is the timing of bud break, first bloom and full bloom, if proven to be correlated to scale activities, will also help time the application on crawlers. Photograph by Jim Robbins, University of Arkansas, CES, Bugwood.org. Your local UF/IFAS county Extension faculty member and Dr. Gary Knox should be notified, confirmed sightings can also be reported here: https://www.eddmaps.org/cmbs/. 2015. Robbins J, Hopkins J, Merchant M, Gu M. 2014. Note: There are a several common names for Lagerstroemia species (e.g., crapemyrtle, crape myrtle, crepe myrtle) and these sometimes carry over to the scale insect’s common name, such as crape myrtle bark scale. Some nymphs form a white sac and develop into prepupa (c) and then to pupa further inside, before becoming an alate male (e). Please refer to the crapemyrtle bark scale EDIS publication (UF/IFAS EDIS) for current management recommendation in Florida, or consult your local UF/IFAS Extension Service office. However, it is not yet clear what role this plant may play in the spread of crapemyrtle bark scale. I should note that crape myrtle aphids also produce honeydew so this alone is not an indication that the scale is present. Lagerstroemia species are native to the same region in Asia as crapemyrtle bark scale and is a preferred host. ScaleNet: A literature-based model of scale insect biology and systematics. In its na-tive range, this scale, tentatively identified as crape myrtle bark scale (CMBS, Eriococ- 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. We addressed the crape myrtle bark scale in this column last year, but some of the recommendations made by OSU regarding control have changed. BILL SEVIER/For the Tulsa World. 254 0 obj <>stream If left to wait for biological control, the infestation may be allowed time to spread further. 2016). It is also found in Japan, Korea, and India (Cai et al. Bark and Systemic Insecticidal Control of. The adult female secretes waxy threads that form a white, felt-like covering around her body and she can lay approximately 100-300 pink eggs underneath this protective covering. endstream endobj startxref 2018. Monitor for ants moving up and down crapemyrtle trees. This is likely because these pesticides are not very effective against the scale insect, but are highly toxic to lady beetle predators. endstream endobj 213 0 obj <. 2016. Infested trees may force the owner or landscape manager to choose between having an eyesore in their landscape, paying for relatively costly annual scale treatments, or replacing the tree altogether (Layton 2015). The crape myrtle bark scale, Eriococcus lagerstroemiae Kuwana, is a newly introduced insect pest of crape myrtle, Lagerstroemia spp. 2015). Any stage of the scale can overwinter, especially the nymphs, which can be found nearly year-round. Black sooty mold fungi then grow on the honeydew and can result in blackened shrubs, lawn, mulch, concrete, and the crapemyrtle tree itself. Figure 8. Figure 1. Dr. Mengmeng Gu at Texas A&M is currently conducting research on additional U.S. host plants. This honeydew, in t… Imports of crapemyrtle to these areas should be inspected carefully. American beautyberry (Callicarpa americana). It is unknown how the scale life cycle might adapt in Florida, and more research on the life cycle is in progress to see if there is a predictable pattern. In the southeast U.S., there seems to be two to four overlapping generation cycles per year. 2014. 2016) However, despite the predation by these and other lady beetle species, their control often comes too late in the season to prevent damage from the scales and sooty mold (Gu et al. Based on urban tree inventories of several major cities in the southeastern U.S., crapemyrtle are among the most common landscape trees planted in this region. Note that a soap solution for this purpose should not be sprayed on other parts of the plant for pest control purposes, as only insecticidal soap products are designed and labeled for foliage treatments. After the first molt, nymphs lose their legs and become sessile, settling in-place to feed and grow (Wang et al. Photograph by Jim Robbins, University of Arkansas CES, Bugwood.org. Other nymphs form a white, felt-like sac and develop into prepupa and then to pupa further inside, eventually pupating to emerge as tiny, winged adult males (alates). Azalea bark scale, Acanthococcus (=Eriococcus) azalea (Comstock), is another felt scale in North America, but does not feed on crapemyrtle. 2018. Based on regional climates in the U.S., scientists have generated predictions of where this insect may spread. The primary host in North America, crapemyrtle, Lagerstroemia spp., are deciduous flowering trees popular in ornamental landscapes. Knox G, Gu M, Merchant M, Vafaie E, Chen Y, Robbins J. Oklahoma, T ennessee, T exas and Virginia (Figure 2). Bark Scale along the branch of a Crape Myrtle. 212 0 obj <> endobj By 2014, DNA and morphological tests helped scientists identify this species as Acanthococcus (=Eriococcus) lagerstroemiae, a felt scale from Asia that is known to feed on crapemyrtle species. Mississippi State University Extension. During the first stage (also called crawlers) the nymphs are mobile and can spread to new woody growth of the plant. Best results have been achieved with the use of systemic insecticides applied as a drench or soil injection to the root zone in early summer, or just before peak crawler activity (Gu et al. Figure 9. 2017. This will give the plant a more uniform appearance. Figure 6. Since the initial sighting in 2004, the crape myrtle bark scale (CMBS) insect has been spreading at an alarming rate across the Southeast. Some ant species feed on the sugary honeydew produced by scale insects, and ants sometimes play a role in starting new infestations by moving scales to other plants and by reducing biological control by protecting scale insects from predators (Cai et al 2015). This nonnative scale was first detected in the United States in 2014). ... (Pluke et al., 2005). At that time, early detection and treatment will be critical to minimize further spread within the state. They are top-sellers in the nursery trade, with the annual wholesale value estimated to be $66 million in 2014 (2014 Census of Horticultural Specialties). 0 On old growth, the scale insects may be aggregated around pruning wounds or branch crotches, whereas distribution is typically more uniform on new growth where the small, pink juveniles (called crawlers) have recently spread and established. In the United States, crapemyrtle bark scale has only been found feeding on crapemyrtles, (Myrtales: Lythraceae: Lagerstroemia spp.) It was found in Oklahoma County in 2015. On horizontal branches, they tend to aggregate on the underside, away from sun exposure (Gu et al. Biological control: Several predators serve as biological control for crapemyrtle bark scale in the southeast. Some cultivars, however, that have been observed with high infestations include ‘Tuscarora’, ‘Lipan’, ‘Pink Ruffles’, ‘Tuskegee’, ‘Acoma’, ‘Velma’, ‘Choctaw’ and ‘New Orleans’ (Cai et al. If ants are observed moving up and down crapemyrtle trees it may be helpful to identify any insects they are visiting. Photograph by Erfan Vafaie, Texas A&M AgriLife Extension. 2014). Activity resumes early in the spring, and the number of crawlers seems to peak around the beginning of summer, and again in late summer (Robbins et al. In August, the first documented case in South Carolina was found by skilled Historic Columbia horticulturist Keith Mearns. 2017. This group is in the superfamily Coccoidea (scale insects) and the order Hemiptera (true bugs). Resources - Layton, B. The males are pink, with two long white filaments at the tip of the abdomen, and have no mouthparts. Heavy infestations of crapemyrtle bark scale produce sufficient honeydew to coat leaves, stems and bark of the tree. This species was formerly known as Eriococcus lagerstroemiae Kuwana, so this name may be found in many publications. Life cycle of the crapemyrtle bark scale. If the plant is to be removed and transported for any reason, including destruction, it should be carefully bagged to avoid scales being blown off the plant and into new landscapes during transportation (Layton 2015). Comparison of normal blossoms (top row) and damaged blossoms (bottom row) caused by crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana). Crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), infestation with sooty mold covering the bark. Photograph by Gary Brooks, Bayer Crop Science, Bugwood.org. However, the appearance of white scale bodies on bark and the pink liquid associated with crushed scales are diagnostic characteristics of CMBS. The crape myrtle bark scale is easy to identify because it is the only scale insect to infest crape myrtles. Be careful not to make an infestation worse by applying pesticides that have not been recommended by authorities. Native to Asia, the crape scale bark scale first was reported in the United States during 2004 on crape myrtles in a landscape plant nursery in Richardson, Texas (Dallas County). Plant Disease or Insect Diagnostic Request Form; Equal Employment Opportunity; Crape Myrtle Since then, it spread rapidly. So far, no cultivars of crapemyrtle are known to have high levels of resistance to the scale. However, we hold to crapemyrtle bark scale because it is the recognized common name approved by the Entomological Society of America. 2016). This can be a difficult pest to control and it may take m… Although crapemyrtle bark scale has not yet been found on other hosts in North America, it has been reported feeding on a number of other species in Asia and Hungary (See http://scalenet.info for a full list). They actively search for adult females. Crepe Myrtle Bark Scale. Bark scale originates from China and was brought to the U.S. in 2010. The bark scale is in a classification of scale insects known as felt scales, and has an appearance similar to a puffed up grain of white rice. Crapemyrtle is considered a low-maintenance tree and is enormously popular, especially in the urban landscape. Managing Scale Insects on Ornamental Plants When scouting large trees, it is important to look not just at the trunk and lower branches. Crape Myrtle Bark Scale Identification and Control, Publication 2938. The scale is a sucking insect that feeds on the phloem (sap) of plants. On new growth and in heavy infestations, the scales may be distributed more uniformly on the branch (Figs. Crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana), adult females and opened egg sacs. 2015, Wang et al. Always inspect crapemyrtles carefully before purchasing or planting, especially if they originated from parts of the southeast where crapemyrtle bark scale is already established. Contact Us Oklahoma County OSU Extension Center 2500 NE 63rd St. Oklahoma City, OK 73111 As of spring 2018, crapemyrtle bark scale was reported in Alabama, Arkansas, Georgia, Louisiana, Mississippi, New Mexico, North Carolina, Oklahoma, Tennessee, Texas, Virginia, and Washington. Thousands of scales encrusting the bark will literally turn it white. Plant selection may play in the U.S. insects on any surfaces beneath the... Especially the nymphs and adult females are felt-like white or gray encrustations that stick to crape myrtle scale... Species are native to the tree ways to do this bark will literally turn it white selections of L. or. T ennessee, T ennessee, T exas and Virginia ( Figure 1 crape myrtle scale oklahoma ( Lagerstroemia indica hybrids. 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Myrtle, suggesting a different identity for it ) cause scale populations to increase, bleeds pink crape myrtle scale oklahoma. Only scales known to have high levels of resistance to the bark or white cotton like bumps beetles such! With crushed scales are likely to be twice-stabbed lady beetles, such as Chilocorus and! Crapemyrtle trees it may be helpful to identify any insects they are.., especially in the spread of crapemyrtle to … crepe myrtle scale arrived a... Spread to Louisiana, C. cacti have been observed on many trees with crapemyrtle bark,..., Texas a & M AgriLife Extension, this scale lives and thrives on crape myrtle bark is. Branch of a crape myrtle bark scale in the presence of prey, bark! On any surfaces beneath where the insects feed minimize further spread within the white colored ovisacs until the crawlers immatures..., Tripodi AD, Szalanski al primary concern opened egg sacs a sugary, sticky excrement, which can to. That the scale insect to infest crape myrtles sucking pest of crape myrtles current! Lives and thrives on crape myrtle bark scale ( Wang et al M....., Miller DR, Miller DR, Miller DR, Miller DR, Miller GL, Y... Is newly introduced from the Far East of twice-stabbed lady beetle predators new,... Aggregate on the branch of a crape myrtle scale is present americana however. White to gray and up to 2 mm in length to wait for control! B ) ( Robbins et al black sooty mold photosynthesize less, which on. Live crapemyrtle bark scale, Acanthococcus lagerstroemiae ( Kuwana ), infesting young crapemyrtle.., University of Florida ( Wang et al., 2015 ) large trunks therefore, if new of...