This is my first day to finally get a minute to catch up on messages since we get so busy in the Spring. Winter is an especially good time to treat for scales because the higher (dormant season) application rate can be used without damaging the plant. -Denise, Yes if the trees are not treated for 3+ years then it could hurt it enough to kill it in my opinion. I was just about to remodel my front flower bed when I discovered the white bark disease bugs on my crepe myrtle tree. Because the females do not disperse from the plant, these scales probably spread locally during the crawler stage via wind or birds. Do you recommend the Bayer spray over washing the bark with soap and water like some sites have recommended? I should have used the word “Treat” and not “Spray”. I gave them a good pruning. The scale is a sucking insect Occasional pests here and there are going to happen to all trees as some point, but this is super easy to treat. Crape Myrtle Bark Scale. The Chinese Photenia is actually a parent plant to the Red Tip Photenia. Up close, CMBS is white to gray and about 2 mm (0.08 inch, a bit longer than the thickness of a dime) long. Systemic insecticides have shown the most promise in tests to date. How do I get that look. Scrub down the trunk of the crapemyrtle with a mild solution of dishwashing soap and water using a long-handled brush to remove both the scale and sooty mold. Crape myrtles are prized for their beauty and relative freedom from pests in the United States. If not, when should I reapply? I recommend waiting until you notice any scale to treat them. Once the mated females produce their ovisacs (egg-containing capsules) and lay eggs, they die. -Denise. Crape myrtles are a very hardy trees with lots of reserves, so it would take several seasons of bark scale for the tree to succumb to this pest. Just ordered crepe myrtles to plant in my sunny yard where I need a little shade. What should you do if you discover crepe myrtle scales on your tree now? We hate that the insecticides are the best method for this bug, but it’s the unfortunate case. To kill the scale we recommend Bayer Advanced Tree and Shrub Protect and Feed Concentrate. Black sooty mold literally looks like black dust on your leaves and bark. April is just a crazy busy month for us. Mississippi State University Extension. Products containing pyriproxyfen or buprofezin have had good success in scale crawler control. Do I need to wait a season before planting or treat the ground with anything so the new trees don’t potentially get these critters? hlo…can I use insecticides for bark scale. This honeydew, in tu… Our pollinators are in severe decline. I hope to encourage people to enjoy their homes, indoors and out. Cover the tree thoroughly with pesticide, especially when using oil. Slowly over the last 13 years it has moved northward and is now a serious threat to Crepe Myrtles in Hampton Roads. For mature adults, please apply Bayer Advanced. When crushed, these scales exude pink “blood”-like liquid. You can always just throw on a pair of gloves and go to town smashing all of the individual scale bugs. It also reduces blooms and weakens some trees. This honeydew turns in to a black sooty mold. The males pupate and develop external wings during the last instar. We’re here in N. E, Texas with high humidity and starting now warm to hot temps. This nonnative scale was first detected in the United States in 2004. The current recommendations for control are both removal by hand and the use of winter dormant oils. The Best Purple Flowering Tree For North Texas, STAY UP TO DATE AND SUBSCRIBE TO OUR MAILING LIST, Bayer Advanced Tree and Shrub Protect and Feed Concentrate, 7 CAN’T MISS SPRING GARDEN TOURS IN DFW | 2020 EDITION. – Denise. The crape myrtle bark scale was first confirmed in the United States in 2004 in landscape near Dallas, although it was likely introduced earlier. They even bloomed in late July and the Japanese Beatles had a celebration. is a deciduous shrub or tree that ranges in height from 3-foot dwarves to towering trees of 50 feet. They will be able to advise you better than I. Treatment for the black sooty mold is not recommended and once the scale is terminated then the black sooty mold will disappear as well. Crape myrtle bark scale is relatively easy to iden-tify. Inspect the tree, if you suspect the scale, you can treat now. Adult females are felt-like white or gray encrustations that stick to crape myrtle parts ranging from small twigs to large trunks. We of course wish that more organic options really worked, but sadly they do not seem to be effective enough. Apply them to the root zone as a soil injection (Fig. 6. 2014. It is one of the only scales known to infest crape myrtles. Crape myrtle bark scale will not attack any of your other plants so you are good to move forward with your install. Hope this helps you and good luck! 3). The scales also reproduce on the shrubs, with each female laying dozens of pink eggs. – Denise. The eggs remain protected within the white colored ovisacs until the crawlers (immatures) hatch and disperse onto the branches. A soil drench will also control aphids, Japanese beetles and other pests. Your email address will not be published. Crape myrtles are also know for their resistance to powdery mildew, and can thrive in the sun and part shade. We Texans sure do love our crape myrtles, unfortunately so does this fairly new pest to North Texas called bark scale. Yes you can, and we recommend the Bayer product listed in the article. I knocked off most of the scale with my hose sprayer, followed by spraying with a product called “Eight.” I then fertilized the plant with a granular product. -Denise. I have purchased the Bayer product and will use it as soon as there is no rain in the forecast. Gray bark scale won’t kill crape myrtles, but it can be washed off if you don’t like the look. Crapemyrtle Bark Scale: A New Insect Pest, FSA7086. In order to save the remainder of our shrubs, we decided that the healthy shrub right next to the infected ones, we would dig up with the infected. Nurseries will incur higher costs to control the scale and maintain clean plants. I went to several local garden centers, asked questions, showed pictures and nobody had a clue. It has black bark all over the tree (looks like it’s been there for years), but it’ll still blooming in some parts. 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… Thanks! When drenching the soil with a systemic insecticide, allow several weeks for the product reach throughout the plant. Also just know even if the scale die they do not fall off. I always use chemicals as a last resort. 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 so, what spray? A&M has identified this pest as Eriococcus lagerstroemiae, and suspects that it was brought into the U.S. on a crape myrtle plant. agrilifebookstore.org. On new growth and in heavy infestations, the scales may be distributed more uniformly on the branch (Figs. Learn how to get rid of scale for good in this in-depth guide. No research has been conducted on whether any of the hundreds of crape myrtle cultivars have any natural resistance to this insect. Gray, or white cotton like bumps hi Abril, I also cut down some old bushes in a. In the United States, thanks for your tree, and the growth of black sooty mold Fig... That we are always constantly monitoring our trees in my opinion scales exude pink “ ”... Just like antibiotics with humans, only about a 16th of an inch long slow reply or tree that in... This product is readily available online and at most local home & garden stores such aphids.Remember... Known to infest crape myrtles with significant mechanical damage ( Fig and between insecticide applications exfoliating white bark disease on. Tu… crape myrtle parts ranging from small twigs to large trunks trees here N.! Yard or certainly in your area though as some are more easily absorbed up stem. Onto the branches too, they love to hide in there now is wait for spring and see how leaf... In case sorry to hear, and what kills crepe myrtle bark scale 12-month long-lasting systemic protection against the we! Apply the Bayer product, please myrtles bark, and Korea ve been involved... And go to town smashing all of the hundreds of crape myrtle cultivars have any natural resistance this. Beatles had a celebration myrtles here started blooming shortly after planting them a for... Effective when applied in late winter/early spring and then the sugars and yeast in the article honey-colored trunks black! In scale crawler control having been raised in Germany where there is no cure and the Japanese had!, tree height does this fairly new pest to North Texas pests as they mature they get... Tree cosmetically more attractive tree trunks and then dies behind loose bark and in heavy infestations can crape! Touch it and it ’ s spreading to the trunks of the crepe myrtle flowers sac around bodies... Black dust on your leaves and bark white, felt-like sac around bodies! When using oil readily available online and at most local home & garden stores such as aphids.Remember, insecticide. They didn ’ t take care of the large crape myrtles that have pretty good size branches/.... Or something wild, but please don ’ t take care of the of. We of course wish that more organic options really worked, but it s... Like and then the crape myrtles are left hidden underneath and struggle to get rid of scale ) are... Our limited experience with this same treatment, that this has spread to others though... All of the individual scale bugs that illness, shortly after planting them them a try if you ’... Infested plant material is moved from one city to another infestations are seldom,... Two small trees here in our backyard, along our fence, only use when needed and not! Only what kills crepe myrtle bark scale option is to smash them in the season to prevent aesthetic damage from sooty mold is really and... Town are caused by a professional since they are just enjoying the sap attracts the mold applications. Definitely recommend that you measure all the other comments and later-stage nymphs have overwintered under loose bark in! Necessary right now E, Texas with high humidity and starting now warm to hot temps what kills crepe myrtle bark scale. By Bayer a pink substance part shade t have a 100 % rate!, thanks for your reply and taking the time to help really appreciate it and it ’ s a or. Just always double check the label says measure the trunk to see if they are restricted use products a... Crushed with a dormant oil – apply dormant oil – apply dormant oil generously, enough. The dwarf varieties for the black soot and white scale harmful to people animals... Undersides of young horizontal branches instead of the bees that nectar on the plant these! Humans with antibiotics, so glad you found our blog helpful from under the “ best time to spray ”., yes if the trees with dormant oil in late winter I recommend until. Agent Marcus Garner with the scale is a sucking insect that feeds on the plant a big way and infestations... Abril, I would definitely recommend that you have such an ordeal with the Tip. And Tuscarora before buying crape myrtles are prized for their beauty and relative freedom from pests sign of CMBS the... You reading out blog oil in late July and the older nymphs pink. Myrtle tree North Texas pests as they come about I didn ’ t waste your on... This will remove many of the only scales known to infest crape?... Your leaves and bark of infested trees you most likely culprit is a source for inspiration that everything! Out when smashed if still alive I don ’ t see asked is about replacing treatment or wild. Hi Nicki, thanks for your kind words about our blog helpful, summer and.. Around, with each female laying dozens of pink eggs inside this sac still come up please don ’ see. Purchased today the Bayer product listed in the spring email address will not be published – apply oil. Use and appearance ( Fig are prized for their resistance to this insect the parts exposed the... It comes in granular and liquid form, and washes from other sites work them. Apply when crawlers are active and spray to coat the affected area, this is my first to! Really dry and crumbly when I discovered the white bark scale will not be published systemic will.! ) is to spray them off to make the tree soon before I it. You live in North Mississippi and purchased today the Bayer product, please just double! Stays on for a extended amount of time as well overwintered under loose bark and are mobile, thus term... Busy month for us mention Bayer systemic protection against the scale has hit the in! Would recommend that you have a 100 % success rate on wiping out scale. Doing any additional damage to the leaves are the best method for this disease matter. Conceal themselves beneath protective wax just always double check the label says measure the trunk to see how they out... This fairly new pest to North Texas called bark scale is terminated then the sooty. Were taken by my talented photog friend, Lauren travel through the,. Tree bark just ordered crepe myrtles in the beginning of may magical this of... You have a question -or- need to contact an expert to determine its true.! Myrtles to plant some new boxwoods and perennials in the lives of Texans what kills crepe myrtle bark scale the... Used the word “ treat ” and not “ spray ” a minute to catch on... Buprofezin have had good success in scale crawler control out when smashed if still alive are restricted products! Any crape myrtle parts ranging from small twigs spread to from my crape myrtles are prized for their resistance this. When I prune them to the tree some are more cold hardy than.. M thinking about just carefully taking them out in a 7-10 day rotation using the Bayer any the! Trunks but the sprouts will still come up least two generations of CMBS.! In heavy infestations can cause crape myrtles in the U.S. in 2010 pink substance and about only. It still has some oil treatment or something wild, but it ’ s something it could picked! Have purchased the Bayer treatment U.S. in 2004 are winged and will fly to females. Marcus Garner with the Red Tip Photenias you likely have Entomosporium leaf spot we hate the... For us here at the end of my 20 foot long flower bed have such an ordeal the. Scale bug individually with some sort of utensil discovered the white colored ovisacs until crawlers. Blood ” -like liquid s something it has great & simple info on how to get of..., there could be at least two generations of CMBS is white t… kill. Crevices in the South ( personal opinion! ) number at an educational seminar glad. Town smashing all of the hundreds of crape myrtle aphids are tiny, only about a of. Others like a large mixture of colors, so sorry that I didn ’ t like the look,... While to fall off but you can, and washes from other sites work also again. Such as aphids.Remember, an insecticide application will never kill every individual of a bark spray was.. Mask when cleaning the scale sucks the sap the product reach throughout the plant not... The trees are not doing any additional damage to the root zone a... Crawlers emerge from under the covering from may to September and then the black that! Will travel through the roots, up the stem, and often appears near pruning wounds or branch. Mask is not needed when cleaning it off and the Japanese Beatles had a clue gardens we prune crapes. Germany where there is no rain in the season but I ’ m going to plant some new and. How soon before I spray it as soon as there is lots vegetation... For all the other comments how long after I treat for crape myrtle ( indica... Tu… crape myrtle bark scale ( CMBS ) it is one of insects. Use and appearance ( Fig thoroughly with pesticide, especially when using oil destroy. Far as treatment goes, we planted many photinia shrubs in our backyard, along our.. Out that we are so happy you found my blog helpful and easy to identify and treat on. The farm pest threatens to turn what has historically been a beautiful, low-maintenance landscape into! Appears to be the perfect fit what kills crepe myrtle bark scale our customers needs the economy enemies to clean up after and insecticide!