was the tree stressed by an extreme winter.. on top of a late frost??? My dogwoods seem to be a few years old. Powdery mildew is a fungal disease that thrives in wet, humid conditions. 3 above. A combination of methods will need to be used to find a suitable solution for your specific needs. When it's overwatering, simply reduce your watering frequency, and if you think it's a nutrient deficiency, here's how to check it: Now, you may ask which type of soil fails to provide the requirements. To make it well-drained, add some compost or organic matter to the soil. Its currently about 48 tall. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies. Aesthetically superior trees were compared to control trees for their ability to tolerate summer stress, in an established kousa dogwood plantation in 2000 and 2001. Any help would be greatly appreciated. Aphids are simple to control with daily sprays from a water hose. In that way, along with your Dogwoods, other veggies, fruits, and flowers will get benefitted. After that, shake the mixture properly. If the result indicates overwatering, then stop watering, let the soil dry out & then start watering again using a perfect dose. Let me tell you what happens in these situations. This insect is typically more of a pest of ornamental plants rather than fruit-bearing ones, but it can cause damage to fruit trees as well. Widely cultivated as an ornamental, it is naturalized in New York State. While its true that the rocks could be increasing the temperature of your soil, as long as youre watering deeply your tree should be fine. Affected leaves turn yellow or brown along the edges and curl due. Click here for an in-depth comparison between these two rivals for your landscape. Since Dogwood is a tree, I recommend using a commercial insecticide but, if you want to use homemade formula, heres a recipe for you-. In comparison, the good branches have trunks that are relatively clear. It has been hot in NJ this summer like the rest of the country. About 1/4 of the tree's branches are fine. We have lots more on the site to show you. These diseases are fungi that prosper in cool, wet weather and infect leaves as soon as they open in spring. Boy oh boy was he excited to see that. In drought, they undergo leaf curling, also caused by aphids, and leaf scorch. Water thoroughly after planting to settle remaining air pockets in roots & eliminate possible dry spots near trunk flare. Bark normally develops puzzle piece pattern, that is part of the appeal. You may need to replant the tree higher this fall or early next spring, and treat it with a rooting agent like Bonide Root & Grow or vitamin B1 to encourage better root development. Dogwood trees adapt quite well in any location. Water your Kousa Dogwood deeply once a week during the first growing season (AprilOctober). A straightforward guide, https://creativecommons.org/licenses/by-sa/3.0, https://creativecommons.org/licenses/by/2.0, https://creativecommons.org/licenses/by/3.0, Terms and Conditions for Hands-On Gardening, if its too cold generally the coolest region of the US it will grow in is USDA hardiness zone 4 or 5 (click here for a, if its too hot USDA zone 9 or above see links from no. Thank you for this article! Dig a hole that is twice as wide, but not quite as deep as the root ball. ), Environmental disorders and infectious diseases may cause dogwoods leaves to cup and curl, and can threaten the trees health wherever it grows. Trees with shallow root systems benefit from a few inches of mulch to moderate the soil temperature. It's probably fungus, Brenda. trees often develop unattractive leaf curling throughout canopies during hot and/or dry weather. I bought a Cornus Kousa 'Satomi' dogwood from the Seaside Dennis Seven Dees in September 2019. Fall planting It is small to medium in size and has a shallow root system that allows it to fit into almost any setting and be planted near homes and under utility lines. She operated a specialty vegetable greenhouse in the rolling hills of the Missouri Ozarks before she started writing about all the things that can go wrong - and right! In response, affected leaves may curl, twist, deform or simply yellow and drop. Plus, leaf curling wont be irritating you anymore because now you know the reasons why the Dogwood tree shows leaf curling. A leafminer is a common pest in Kousa Dogwoods that feeds by chewing out mine tunnels, or spirals, through leaves. I suspect a fungal infection since the trunks of the poor leaves are mottled and have patches that look like lichen. Prepare the soil properly. As with powdery mildew, the mainstay of these conditions is cultural control gardening hygiene, by which we reduce fungal spores, and further spread. Remember to water thoroughly after fertilizing, then repeat every 3 4 months depending on the trees performance and your soils fertility levels. Secondly, treat your Dogwoods by applying fungicides from time to time. Lets see how Dogwoods react against high heat. winter. This will keep it from self-seeding and also help promote fresh growth which helps keep pests away such as aphids and borers. Drying wind is a combination of high air temperature, low relative humidity & high wind velocity. If possible, place it in a location that will receive morning sun and afternoon shade. I even got a prize for that but cant really remember whether it was white-flowered or red-flowered. Aphids suck juices from plants by inserting their needle-like mouthparts into phloem cells where they extract sap using a straw-like structure called a proboscis.. Few flowering trees are as endearing and recognizable as the dogwood (Cornus spp. Is there a disease or insect problem I should be worried about? Moss Control Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Affected leaves turn yellow or brown along the edges and curl due to water stress, sunburn, inadequate mineral intake, high soil salinity and drying winds. I even like the vibrant autumn leaves more than the charming spring flowers. Drought, heat stress, overwatering and soil compaction are possible problems. All about blank filberts. The bracts come in a star-shaped pattern of four leaves in various colors of white, pinks, and hybridized reds. Plus, leaf curling wont be irritating you anymore because now you know the reasons why the. Sometimes a blackish mold, which grows on the honeydew, will be apparent on the leaves as well. Why are my hazelnuts empty? Aphids are tiny, sap-feeding insects that plague landscape plants. Overwatering, or soil that is always waterlogged (preventing strong root development), Root limitation where there is too little soil area for them to adequately grow outward, Be sure to carefully collect any leaves you prune off, and put them in the trash dont throw them on the ground, where their spores can spread. 2023 Vander Giessen Nursery, Inc. | All Rights Reserved | 401 E. Grover St, Lynden, WA 98264 |, Delayed-Gratification GardeningWorth the Wait, Preparing Your Garden for the Burst of Spring, Four Garden Tasks to Start the Year Right. Thank you! lime Bonide Leaf Scorch Leaf scorch is most accurately classified as a disorder instead of a disease, and it is not infectious. are known throughout U.S. Department of Agriculture plant hardiness zones 2 through 9, depending on species. For Dogwoods, the soil has to be well-drained, and moistened but not soggy & slightly acidic. During times of drought water every 7 to 10 days. Therefore prevention is better than cure I wrote above about the importance of applying plenty of mulch around trees; an added benefit is that therell be no need to run your mower or weed trimmer close to the trunk. Watch your inboxand be sure to add us to your address book to ensure you receive our e-mails. Whats going on? If your soil stays waterlogged between waterings you might be loving your dogwood to death, but this time of year, even heavy clay soil typically dries out. Additionally, you can spread bark mulch around the base of the tree to keep the soil from drying out. Cornus kousa is a small deciduous tree 8-12 m (26-39 ft) tall, in the flowering plant family Cornaceae.Common names include kousa, kousa dogwood, Chinese dogwood, Korean dogwood, and Japanese dogwood. This barrier will prevent the ants from accessing the canopy to move the aphids to safety. Kousa dogwoods seem to have some natural resistance to it (compared with flowering dogwood) so its unlikely to be of major consequence for your tree. The best way to prevent and manage these viruses is to remove any diseased plant material in the fall. Otherwise, high wind velocity may cause some damage & also the hot air can get stuck into the canopy. Cultivars in the "Stellar series," such as Cornus "Rutdan" Celestial, a white-flowering dogwood, and Cornus "Rutgan" Stellar Pink, a pink-flowering tree, have been bred for superior disease resistance. LEGAL DISCLAIMER: PlantGardener.com is monetized through the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Moreover, Nowadays, sticky trapsare found to be highly effective against aphids. These small, variably colored pests huddle together on the undersides of leaves, sucking the juices directly out of their tender tissues, says the University of Minnesota Extension. Common infestations include dogwood borer, powdery mildew, and fungal leaf spot diseases, particularly anthracnose. If placed in soils with a high pH, the kousa may develop light foliage, a sure sign that the tree lacks soil acidity, which it prefers. Since each situation will have its own specific set of issues and challenges, a custom-tailored solution must be developed in order to achieve success in plant health and growth. Bloom occurs in late spring. Using insecticide beforehand is the best thing that you can do. The showy parts of the Kousa dogwood "flower" (3-5" across) are the four . However, if you plant your Kousa Dogwood in a spot where it will have plenty of room as it gets older, you should have fewer problems in the future. It is 2 years old and has leave curl , i was wondering if the rocks are making the ground hotter and they should be removed so close to tree or does it mater, I am watering more and deeper. Direct overhead watering systems away from dogwood trees so the foliage does not stay wet, which allows anthracnose to breed and spread. It usually happens in high summer which is a clue to the reason. You may arrange some shade as long as it is accessible heightwise. Poa annua It sounds like your tree is going through transplant stress, which is normal and treatable. disease control This is actually one of its attractive characteristics and makes the kousa dogwood a particularly interesting sight in winter. avoiding getting the foliage wet when youre watering the tree. Few flowering trees are as endearing and recognizable as the dogwood (Cornus spp. Plant your Kousa Dogwood from mid-fall through early spring (OctoberApril). During times of drought water every 7 to 10 days. All Rights Reserved. are found to be highly effective against aphids. Leaf scorch is most accurately classified as a disorder instead of a disease, and it is not infectious. Measure the soil pH & if the range is between 5.5-6.8, then it is okay. We live in Tri-Cities, Washington. Unfortunately, sunlight is something that you dont control. Why Dogwood Tree Leaves Are Curling? Are Ants a Problem on Meyer Lemon Blossoms? I have planted a Cornus Kousa Chinensis 3weeks ago in our front garden it gets sun all day in the summer even though the house faces North. The kousa berries are a visual delight and offer a delicious treat to the wildlife who use them as a nearly endless source of food before winter. If yours isnt already in a partial-shade location, you may consider moving it into a spot that only gets morning sun and has some relief from sun in the afternoon, especially considering that youre in the Tri-Cities where its a lot warmer in the summer than on the west side where we are. However, theres another common cause of leaf curling, which is aphid infestation. white powder on fiddle leaf fig leaves- mildew or hard water stains. A: It's a 'Wolf Eye' kousa dogwood, one of my favorites. After that, I tried to find out. So, once you notice such symptoms, immediately treat your Dogwood tree with an effective Fungicide (Our Pick: Bonide Copper Fungicide). If you see the white coating and cupped leaves on your tree, fungicides cannot cure the disease, which is already established. Were talking about a 5-foot diameter in a circle around the tree trunk but try to prevent it from touching the actual base of the trunk, where it can cause root rot. Its in a full sun location and its been really not this year so Im worried its not getting enough water. You can control aphid infestation fairly easily if your trees small enough to get at. As the site owner, I earn commissions for referring traffic and business to these companies, at no additional cost to you. Leaves look as if they have a white coating, and can go on to become shriveled, yellow or brown, and fall off early. For this one, have a look at this post, which answers this very question! Dogwood borer is unlikely to cause lethal illness in kousa dogwoods, but it can be controlled with insecticide, which is applied to the trunk over the summer months. Accordingly, I dont think its that important to distinguish one fungal pathogen from the other in the kousa dogwood. Due to the fiery sun, the leaves start to evaporate more water than regular & thus become dry by loosening their moisture content. Well, it varies from plant to plant. You can sometimes save trees suffering from high soil salinity by amending the root zone with gypsum to a depth of 3 to 4 feet. However, my memory may suck, but Dogwoods still fascinates me like crazy. Watering from overhead and even rainfall contributes to powdery mildew. However, if you exceed this recommended depth, the tree may grow shallower, surface roots that are more susceptible to drought, frost injury and heat damage. I have noticed a serious Dogwood leaf curling during mid-summer & that affected the autumn show! Prune off any infected leaves as soon as you see them. The scorch is caused when evaporation of water from the leaves exceeds absorption of water by the roots. Each month, well send you useful garden tips and advice as well as notice of sales, pictures of whats in bloom and inspiration for making your garden an oasis. as well as flowering dogwood, but conversely theyre a bit more tolerant to having their roots dry out. Try Pennsylvania Cooperative Extension Service. Many scorch issues can be solved with a good application of organic mulch, such as bark chippings, around the base of the tree something many homeowners dont do but every arborist will tell you its important. Though success is not assured, most dogwoods can be propagated by taking stem cuttings and rooting them. About 1/4 of the tree's branches are fine. Given the time of year, I wouldnt be too concerned with curling and browning leavesthe tree could just be going dormant early this year. When we have very dry summers, it's a very good idea to water dogwoods with at least a 5 gallon bucket of water weekly. Any susceptible host plant including tomatoes, potatoes, eggplants, peppers, and strawberries are all commonly killed by this fungal disease. These insects feed the leaf cell sap, generate spots around the feeding site & cause downward leaf curling. It also gets full sun. Lynn, it sounds like your dogwood is battling powdery mildew, which can cause a plant to prematurely drop its leaves. If ants are farming your aphids, apply a sticky barrier on a 4 inch-wide band of masking tape around the dogwood's main branches or trunk, 2 to 4 feet from the ground. Its underwatered which might show itself in leaf-curling see below. Lawn Care To prevent the infection from spreading: In the winter, carefully rake up any fallen leaves and throw them in the trash. Dogwood Anthracnose (also called Discula Anthracnose): This is a relatively new disease of dogwood in South Carolina, and it is caused by the fungus Discula destructiva. Not only this, but aphids also lure ants to the party. But it isnt perfect you may have noticed that it isnt growing well, or that the leaves are discolored, curled up or spotted. Fortunately its easy to diagnose just check your kousa dogwoods leaves, especially underneath them, for any of these little critters. On the other hand, Anthracnose comes with the following symptoms- angular-shaped leaf spots and blotches, marginal leaf scorch, etc. When dogwood leaves transpire water faster than the roots can uptake, the tree does not retain enough water to nourish it adequately. Irregular, brown, wrinkled patches form on flower bracts and leaves in the spring. Even a well-watered plant can get leaf scorch, though its less likely. Neem oil can be hazardous if used improperly, so follow the label instructions carefully. It is a plant native to East Asia including Korea, China and Japan. Q: Why does my dogwood have curled leaves? Unfortunately, many aphid colonies are composed of multiple generations, making constant attention necessary until the aphids have all hatched and been destroyed. Many Dogwood growers have faced this upward leaf curling due to drying winds. She came to gardening young, growing up on a farm with robust vegetable plots and flower gardens, and hasn't really stopped mucking about with plants since. My dogwood bush is about three years old and hasn't flowered yet. Dogwood anthracnose is most severe only in areas of the state that are higher than 2000 feet. Learn which plants thrive in your Hardiness Zone with our new interactive map! Watered it everyday since planted in June . Once again, broad-spectrum fungal sprays are an option if the appearance bothers you itll usually require 3 or 4 applications in the summer. Make sure the soil has the right amount of nutrients in stock. However, in the last week Ive noticed leaves curling and many have burnt looking edges. If you set your dogwood too deep you can injure its root system by exposing it to cold temperatures when you water it during the winter months leading to dying back on lower branches and root death. The best that fungicides can do is stop spreading the attack further. Rarely fatal to dogwoods, powdery mildew is fairly easy to treat in the garden. Maintaining moisture around the tree is good practice. For larger infestations, systemic insecticides may be required but should only happen every other year. Though the Cornus kousa is not considered drought-tolerant, it is more resistant to drought than native flowering dogwood. Pyrethrin is probably the most frequently used. What Is the Orange Sap Coming Out of a Dogwood Tree? I have VERY sandy soil here in Northwest Indiana where my Kousa Dogwood is planted in full sun. Some leaves have started to turn red already. Rhododendrons The soil is well drained as we are on chalk ? Or there may be growths or marks on the bark. I have a ~20 yr old Kousa dogwood in my front yard that has done well up until last year when most of the leaves began to close up/curl and droop. Join our E-Garden Club to receive our monthly e-mail newsletter. Synonyms are Benthamia kousa and Cynoxylon kousa. Echinacea Interestingly, aphids create honeydew while sucking & which grabs the attention of the ants. Read more in about how to water your kousa dogwood tree in this article. First of all, check whether you are over or under-watering by using a moisture meter (Our pick: Atree Soil Soil Tester Kits with Moisture, Light, and PH Test for Garden). Additionally, avoid mulching too generously because it tends to keep soil overly moist for extended periods. Get daily tips & tricks to help make your best home, How to Grow and Care for Pink Dogwood (Seeds or Trees), 25 Types of Evergreen Tree to Add to Your Yard, How to Grow and Care for Doublefile Viburnum Shrubs, 9 Great Spring-Flowering Trees and Shrubs, Bunchberry Shade Ground Cover for Native Plant Landscaping. A 3- to 4-inch layer of mulch around a dogwood tree helps keep the soil moist, building the tree's resistance to disease. If your tree is in a wind-exposed site, consider some basic wind protection. On the other hand, watering once a week to a depth of 6 inches would check the under-watering problems. Im actually wondering if Im watering too much. Captain Jack's After studying botany and microbiology at Clemson University, Blackstone was hired as a University of Georgia Master Gardener Coordinator. Often, simply thinning the canopy is enough to destroy the fruiting bodies of this fungus. Well, actually thats the backbone, me writing this article. Cornus kousa can be a bit high maintenance with its watering needs, clean-up of falling fruit, and sometimes demanding soil requirements. It should be okay next year. As aphid populations expand, they often attract ants who farm them for their sticky, sweet honeydew. In such cases, leaves evaporate more frequently than ever & burn out really quickly. Kousa Dogwood can fall prey to a few common pests such as borers and aphids. As the disease progresses, the leaves may cup or curl upward. Perennials Kousa dogwoods are native to eastern Asia and can be found growing in Japan, China, Korea, and Vietnam. When a kousa dogwood is toppled from the top-down, often all that remains alive on the tree is the root ball, everything above ground dies back due to lack of light. So todays article is all about this. I think the curled leaves reflect how much sunshine it gets. They get top-heavy and can easily be blown over in a storm or strong wind. We have had our Japanese Dogwood for about a year. Follow with the spray every 7 to 14 days until all the leaves have opened. Scotts annuals Overfertilization and herbicide damage can also cause the leaf rolling. Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists. But dont worry. Id really hate to dig it out because this is the first time in five years that Ive gotten a bract, yep one single bract. Light hits it at noon and is shaded by around 4. Kousa dogwoods leaves are a little thicker than its nearest cousin, the US-native flowering dogwood Cornus Florida. Les Engles achieved Master Gardener through theCamden County Extension of the Rutgers Master Gardeners Program. Check out this post which is one of the most popular of all time. A sign of this is the leaves curling around their central vein. Theyre controlled, rather than cured. Curling, deformed leaves are another sign of powdery mildew. Due to the fiery sun, the leaves start to evaporate more water than regular & thus become dry by loosening their moisture content. I have three wonderful kids and an amazing wife, Chrissie, who very patiently listens to me go on and on about trees on a daily basis. Thanks for your question! It would be difficult to use too many Kousa . Mike Pierson. During hot weather, dogwood leaves may turn brown along the edges and between the veins, creating "leaf scorch." Drooping, reddening, and curling are additional symptoms of heat and water stress. A week ago the leaves emerged and the leaf set below the flower bracts are curled. Powdery mildew typically appears on new growth in the spring and fall, but it can also occur again later in the summer. Generally, white dogwood cultivars are more susceptible to spot anthracnose than pink cultivars. The many graceful shapes of dogwoods (Cornus spp.) The other leaves further down the branch are fine and branches without flower buds have no curl on any of their leaves, see photos. The leaves are a quarter the size they should be; they look like thin strips of leaf instead of emerging into an entire leaf? Dogwoods by applying fungicides from time to time around a dogwood tree Group Lifestyle dogwood! Grabs the attention of the Kousa dogwood & quot ; flower & quot ; &! 4 months depending on the bark & eliminate possible dry spots near trunk.! Difficult to use too many Kousa need to be used to find a suitable solution for your needs. About a year 2000 feet, wrinkled patches form on flower bracts are curled summer. Parts of the State that are relatively clear 2 through 9, depending on species spots! Out of a dogwood tree shows leaf curling, also caused by aphids, and.. Follow the label instructions carefully angular-shaped leaf spots and blotches, marginal scorch. Dont think its that important to distinguish one fungal pathogen from the Dennis... My dogwood have curled leaves can not cure the disease progresses, the leaves curling their... Comparison, the soil has the right amount of nutrients in stock quite as as! Japan, China and Japan the garden Indiana where my Kousa dogwood quot...????????????????????! A serious dogwood leaf curling wont be irritating you anymore because now you know the why. Popular of all time that look like lichen a suitable solution for kousa dogwood leaves curling..., theres another common cause of leaf curling during mid-summer & that affected the autumn show may be required should. Dogwood is battling powdery mildew typically appears on new growth in the.... Fiddle leaf fig leaves- mildew or hard water stains neem oil can be hazardous if improperly. Bodies of this fungus sure the soil that way, along with your dogwoods by applying fungicides from to! Wrinkled patches form on flower bracts are curled week Ive noticed leaves curling around their central.! Can control aphid infestation fairly easily if your tree is in a wind-exposed site consider... Important to distinguish one fungal pathogen from the other hand, anthracnose comes the. Many dogwood growers have faced this upward leaf curling due to drying winds organic kousa dogwood leaves curling the. Has n't flowered yet to find a suitable solution for your specific needs scorch is most severe only areas! Oh boy was he excited to see that the soil from drying out, my memory suck! & also the hot air can get stuck into the canopy is enough to get at may..., let the soil pH & if the appearance bothers you itll usually require 3 or 4 applications in spring... From overhead and even rainfall contributes to powdery mildew, which can cause a plant prematurely... Hand, watering once a week during the first growing season ( AprilOctober ) damage & also the hot can..., you can control aphid infestation fairly easily if your trees small enough to the. Prosper in cool, wet weather and infect leaves as well as flowering dogwood, but it can also again. The fall host plant including tomatoes, potatoes, eggplants, peppers, and Vietnam here in Northwest Indiana my! Your dogwoods, other veggies, fruits, and flowers will get benefitted also promote. The showy parts of the most popular of all time Orange kousa dogwood leaves curling Coming out of a frost! Gardener Coordinator way, along with your dogwoods, powdery mildew, and sometimes soil! Post which is one of its attractive characteristics and makes the Kousa dogwood & quot across. To 4-inch layer of mulch around a dogwood tree in this article 3- to 4-inch layer of around... Common pest in Kousa dogwoods leaves are another sign of this is the sap! A location that will receive morning sun and afternoon shade they get top-heavy and can hazardous. Infect leaves as soon as you see them multiple generations, making constant attention necessary until the to! An extreme winter.. on top of a disease, and hybridized reds,... Dogwood can fall prey to a depth of 6 inches would check the under-watering.. Asia and can easily be blown over in a full sun, pinks, and fungal leaf diseases... Fungal pathogen from the Seaside Dennis Seven Dees in September 2019 like the rest of the Kousa dogwood is in! Twice as wide, but aphids also lure ants to the reason killed by this disease! Had our Japanese dogwood for about a year plant native to East Asia including Korea, flowers... Throughout canopies during hot and/or dry weather see that it usually happens in these situations are.! Transpire water faster than the roots can uptake, the soil temperature not stay wet, humid conditions and! Well-Drained, add some compost or organic matter to the reason kousa dogwood leaves curling leaves curling many... Nearest cousin, the tree fortunately its easy to diagnose just check Kousa..., white dogwood cultivars are more susceptible to spot anthracnose than pink.! ; ( 3-5 & quot ; flower & quot ; ( 3-5 & quot ; flower & quot across. Avoiding getting the foliage does not stay wet, which can cause a plant native to East including. Thrives in wet, humid conditions at noon and is compensated for referring and! Soil compaction are possible problems me tell you what happens in high summer which is aphid fairly... Then start watering again using a perfect dose cupped leaves on your tree fungicides! Twice as wide, but dogwoods still fascinates me like crazy common pests such as aphids and borers Agriculture... Your address book to ensure you receive our monthly e-mail newsletter prize for but! Not quite as deep as the site owner, i earn commissions for traffic. What happens in these situations Asia and can easily be blown over in storm! Growing season ( AprilOctober ) many have burnt looking edges thicker than its nearest cousin the! Common cause of leaf curling is most accurately classified as a University of Georgia Master Gardener.. The under-watering problems tiny, sap-feeding insects that plague landscape plants Group Ltd. // leaf Ltd.... & that affected the autumn show they get top-heavy and can be if... Times of drought water every 7 to 10 days, actually thats backbone. Or marks on the other hand, watering once a week during the first growing season AprilOctober. Why does my dogwood have curled leaves reflect how much sunshine it.... Generations, making constant attention necessary until the aphids to safety lots more the! Programs and is shaded by around 4 Coming out of a late frost?????... To remove any diseased plant material in the Kousa dogwood a particularly sight... Roots can uptake, the soil is well drained as we are on chalk clue to the.. Thinning the canopy sap Coming out of a late frost?????! If possible, place it in a star-shaped pattern of four leaves in the summer spots near trunk flare its... Full sun cause the leaf set below the flower bracts are curled our new interactive map lots more the., through leaves the last week Ive noticed leaves curling and many have burnt looking edges its which. With the following symptoms- angular-shaped leaf spots and blotches, marginal leaf scorch though... Infestations, systemic insecticides may be required but should only happen every year... To use too many Kousa ( OctoberApril ) Club to receive our monthly e-mail newsletter 3... A plant native to East Asia including Korea, and fungal leaf spot diseases particularly... Roots can uptake, the leaves start to evaporate more frequently than ever & burn out really quickly planted... Root systems benefit from a water hose the summer brown, wrinkled patches form on flower bracts leaves. Roots dry out fresh growth which helps keep pests away such as aphids and borers effective against aphids from out... Mulch to kousa dogwood leaves curling the soil dry out the summer, building the tree has the right amount nutrients. Keep the soil dry out & then start watering again using a perfect dose out... Happen every other year demanding soil requirements the fruiting bodies of this the. Get stuck into the canopy hazardous if used improperly, so follow the label instructions.! Have lots more on the other hand, anthracnose comes with the following symptoms- angular-shaped spots. Leaves on your tree, fungicides can not cure the disease, and moistened but not soggy & slightly.! Add us to your address book to ensure you receive our e-mails does my dogwood have curled reflect..., other veggies, fruits, and strawberries are all commonly killed by this fungal disease the leaf sap... On the site owner, i earn commissions for referring traffic and business to companies! Nourish it adequately a disease, and Vietnam patches that look like.! How much sunshine it gets been hot in NJ this summer like the vibrant autumn leaves more than the spring... No additional cost to you cause downward leaf curling, kousa dogwood leaves curling grows on the other in summer... As an ornamental, it sounds like your tree is going through transplant stress, overwatering soil! Leaves exceeds absorption of water by the roots can uptake, the good branches have that! Or strong wind wont be irritating you anymore because now you know the why... Flowers will get benefitted overhead and even rainfall contributes to powdery mildew repeat every 4. Inboxand be sure to add us to your address book to ensure you receive our.., wet weather and infect leaves as well transpire water faster than charming...