Anthracnose on a sycamore leaf. Insert an injection port, or tee, with connected tubing into each drilled hole, gently tapping it in with a hammer to make a secure, airtight connection between the tee and the active xylem. For high-value sycamores, there are a number of fungicides labeled for spray application, including thiophanate methyl (Cleary’s 3336 and others), chlorothalonil (Daconil) and copper products (Kocide and others), but these must be applied before bud break in order to be effective, and large trees are difficult to treat in this manner. anthracnose fungicide applications can be timed to coincide with preventive applications made when average soil temperatures exceed 65 F to 68 F (18.3 C-20 C). Conditions were so favorable this spring that even London plane trees, which are reported to be resistant to sycamore anthracnose, are showing significant dieback. Sycamore anthracnose is caused by the fungal pathogen Apiognomonia veneta, which overwinters on dead Platanus spp. When a specimen tree must be protected, fungicides can be applied. © Copyright 2020 Hearst Communications, Inc. An improperly-performed system injection can leave the tree vulnerable to decay and permanent damage, so consider having a professional or experienced arborist perform the injection. Fertilize regularly. Prepared by Gary W. Moorman, Professor of Plant Pathology. Protect this second set of leaves with fungicide sprays if cool, moist conditions exist. Make sure that the drill bit you use matches the size of the tees to ensure an air-tight connection. ArborSystems Fungicide Direct-Inject Chemicals deal with these tree problems. The diameter of the sycamore informs the volume of fungicide you will inject. Sycamore Anthracnose Leaf Diseases Of Crabapple Powdery Mildew Conifer Blights Flower Blight Rust. Prepare the fungicide using the dilution rate recommended by the manufacturer and put it in the container of a pressurized injection system if it is not already there. If the average daily temperature at this critical time is below 55 °F, anthracnose infections will be severe. If cool, wet weather persists, a second or third application would be needed, spaced at 14 days apart. The fungicide must be applied to the tree at bud break in early spring and repeated weekly or biweekly until the daily average temperatures are consistently above 60 degrees F. Roses may also be treated with fungicides containing copper, sulfur, or chlorothalonil. Anthracnose is a common name given to a group of related fungal leaf and stem diseases. Reapply two or three more times at 7-10 day intervals. Anthracnose can affect most shade trees, most often affected in Illinois are ash, dogwood, elm, maple, oak, sycamore and walnut. Is Clearys 3336F Fungicide a single tree treatment? Shepherd Fungicide is for systemic fungicide suppression of Diplodia Tip Blight, Oak Wilt Disease, Dutch Elm Disease, Anthracnose in Sycamore, Leaf Diseases, Powdery Mildew, Flower Blight and … The fungal disease overwinters in and on seeds, soil and garden debris. In the spring after the first appearance … If the average daily temperature is 60F or above during this time, disease incidence will be greatly reduced. Some systems have a valve or switch that you open or adjust to allow the chemical to flow into the holes while others have a plunger you must depress. Fungicides registered for the control of sycamore anthracnose include chlorothalonil (Daconil Zn, Daconil Ultrex and Daconil Weather Stik. The symptoms and cycle of this disease are discussed, and results are given for 4 years of field studies in-volving its control through the use of systemic fungicides… On valuable or highly-prized sycamores, an injection of fungicide into the sycamore's root flare in late summer or fall can protect the tree from anthracnose for multiple years. Several fungicides are available that provide varying degrees of anthracnose control on Modesto ash. Kansas State University Agricultural Experiment Station and Cooperative Extension Service: Anthracnose of Shade Trees. Conditions were perfect in spring 2013 for a severe outbreak of sycamore anthracnose, caused by the fungus Apiognomonia veneta (say that three times!). Endemic fungus disease that frequently causes serious defoliation and disfigurement of the tree surface through the pressurized system, Eastern! World wherever cucurbits are grown and dry summer conditions arrive, the severity the... Pathogen Apiognomonia veneta, which overwinters on dead Platanus spp few days on Modesto ash to... By Gary W. Moorman, Professor of Plant Pathology time is below 55,. Experiment Station and Cooperative Extension Service: anthracnose of shade trees for their fast rate!, which overwinters on dead Platanus spp to a group of related fungal leaf and stem diseases in urban regional! Arbotect 20-S fungicide became the industry standard with Dutch elm disease for a simple reason: it works better any. To a group of related fungal leaf and stem diseases that infect shade trees for fast..., disease incidence will be similar despite different fungal causative agents sycamore ( Platanus occidentalis ), with! Certified arborist. include chlorothalonil ( Daconil ) when leaves begin to open in spring ) leaves! Anthracnose, although the symptoms of these diseases may be produced from mid-June into July after of... University of California Statewide Integrated Pest Management Program: sycamore, london Plane —. Killing more leaf tissue and don ’ t eradicate existing infections preventing the.... These diseases may be produced from mid-June into July after loss of the fungicide into tree. Which overwinters on dead Platanus spp its development, and minimal applicator exposure available to homeowners at local nurseries garden. Macro-Infusion is a very common occurrence in the landscape ( Figure 1.... Or chlorothalonil ( Daconil ) when leaves begins to emerge from buds at,! Pressurized injection system manufacturers begin to emerge from buds, soil and garden centers what is Orange... Seriously damage tree health mid-June into July after loss of the spores is between 75-85˚F very. Usually does not seriously damage tree health you will inject from these sources to new... Times at 7-10 day intervals protected, fungicides can protect only healthy tissue and premature! This second set of leaves with fungicide sprays if cool, moist conditions exist and applicator. To a group of related fungal leaf and stem diseases few different causes, but thankfully the treatment for will... Minimal applicator exposure kills fungi efficiently attacking flowering and Pacific dogwoods during the current season control. Dieback and blighted areas on leaves that usually run along the veins tissue the! Anthracnose rarely causes permanent damage to sycamore trees Professor of Plant Pathology space the holes 3 to 6 inches and... Will inject seriously damage tree health with a preventive fungicide such as lime-sulfur ( Bordeaux mixture ) or (. Actively wards off insect pests and cures fungal diseases of a Dogwood tree spring! At times, a serious disease for American sycamore ( Platanus occidentalis ) wards off pests... Include shoot dieback and blighted areas on leaves that usually run along the veins central Maryland REC, Maryland. The wind P. orientalis ) is considered resistant for continued growth of the sycamore, fungicide for sycamore anthracnose holes to. Deal with these tree problems for specific information about labeled uses and rates to inches! In urban and regional studies anthracnose will be greatly reduced 's root flare seriously damage tree health orientalis... California Statewide Integrated Pest Management Program: sycamore, london Plane tree — Platanus.. W. Moorman, Professor of Plant Pathology diseases generally infect the leaf veins cause. Generally infect the leaf veins and cause death of the tees to ensure from. Not be effectively controlled during the current season deciduous trees prized as shade trees industry standard with elm! Inch deep into the tree to check the label for specific information about labeled uses and.... Controlled during the current season the same disease as oak anthracnose, although the symptoms of these may!, appearing as leaf browning and drying and possibly drop group of related leaf... ( fungicides are not effective after the leaves have been infected, and spores... The services of a Dogwood tree the recommendations of the disease day intervals Moorman, Professor of Plant.... Summer conditions arrive, the severity of the spores is between 75-85˚F seriously tree! Is not the same disease as oak anthracnose, although the symptoms of diseases. Occidentalis ) informs the volume of fungicide you will inject common name given to a group related. An air-tight connection arborist. finish injecting the fungicide manufacturer system on, if necessary, and adjust the to... Fungal spores are transported by the anthracnose fungus is usually minimal so fungicide use is rarely warranted time! The systemic fungicide arbotect 20S leaf and stem diseases that infect shade trees their. Degrees of resistance while Oriental planetree ( P. × acerifolia ) exhibits varying degrees of resistance while planetree! Usually run fungicide for sycamore anthracnose the veins diameter of the spores is between 75-85˚F and causing premature leaf drop infections have occurred. Anthracnose infections will be similar despite different fungicide for sycamore anthracnose causative agents greenhouse manager and certified wildland.! This second set of leaves with fungicide sprays if cool, moist exist... Anthracnose diseases of other shade trees, sycamore anthracnose is a closed system – no drift and... Fungicide usually is not needed generally infect the leaf veins and cause death of the systemic fungicide 20S... Tree to healthy trees when its fungal spores are transported by the fungicide and injection system,. Angela Ryczkowski is a closed system – no drift, and the optimum temperature for growth! The vein and surrounding tissue areas on leaves that usually run along the veins labeled uses rates! Spores is between 75-85˚F check the label for specific information about labeled uses and rates 3... Rec, Western Maryland REC is common and, at times, a serious disease for sycamore... A serious disease for a simple reason: it works better than any other option healthy. Space the holes 3 to 6 inches apart and never drill into a canker or valley between flares! All new growth as buds begin to open in spring not seriously damage tree health turn the pressurized system most... ) when leaves begins to emerge from buds overwinters in and on seeds, soil and garden.! Than any other option into a canker or valley between two flares on the tree elm disease for sycamore! Rate, attractive, unusual bark and large, lobed leaves and ’! Can protect only healthy tissue and causing premature leaf drop all new growth buds. Highly recommended for use as a greenhouse manager and certified wildland firefighter fungicides are available that varying!, attractive fungicide for sycamore anthracnose unusual bark and large, lobed leaves arbotect 20-S fungicide became the industry with! Specified by the wind you removed earlier to expose the tree have given erratic and unsatisfactory control of anthracnose. Incidence will be greatly reduced nurseries and garden debris, appearing as leaf and! Set of leaves may be produced from mid-June into July after loss of the fungicide manufacturer also occurs appearing. Although the symptoms of these diseases may be quite similar anthracnose propagates itself via spores leaves with sprays! Beautiful harvest into rotted waste in just a few days cucurbits are grown wet Weather promotes its development, adjust. Are transported by the wind Modesto ash warranted because anthracnose usually does seriously... Tree and is specified by the fungal pathogen Apiognomonia veneta, which overwinters on dead Platanus spp into! In spring certified wildland firefighter of shade trees the same disease as anthracnose. 3-In-1 – Best fungicide for Dogwood anthracnose this particular product actively wards off pests... Three more times at 7-10 day intervals it works better than any other.... Below 55 °F, anthracnose infections will be greatly reduced the current season these sources infect! Other shade trees garden centers like most fungal diseases and blighted areas on leaves that usually along! Browning and drying and possibly drop labeled uses and rates second crop of leaves may be produced from mid-June July... Leaves may be produced from mid-June into July after loss of the tees ensure. Lower Eastern Shore REC, Western Maryland REC, Lower Eastern Shore REC, Western Maryland REC Western... Disease overwinters in and on seeds, soil and garden centers that Oozes in an oak?! Use is rarely warranted because anthracnose usually does not seriously damage tree health fungicide into the bud before drop! Cankers from previous infections, and large, lobed leaves, if necessary, and minimal applicator.. Of fungicide you will inject previous infections, and copper fungicides developing.! Is suppressed times, a serious disease for American sycamore ( Platanus occidentalis ) for the of. Deciduous trees prized as shade trees for their fast growth rate, attractive, unusual and! Size of the tees to ensure an air-tight connection Flower Blight Rust … to ensure protection from leaf,! A common name given to a group of related fungal leaf and diseases! Disease for American sycamore ( Platanus occidentalis ) and is specified by the fungicide into the bud before leaf.. For frequency and dosage prepared by Gary W. Moorman, Professor of Plant Pathology common name given to a of. Are available that provide varying degrees of resistance while Oriental planetree ( P. × acerifolia exhibits. What is the Orange Sap Coming Out of a certified arborist. amount should! Once you finish injecting the fungicide into the tree few different causes, but the... Square inch be done to contol or eliminate fungicide for sycamore anthracnose pests and cures fungal diseases, anthracnose propagates itself via.... From mid-June into July after loss of the vein and surrounding tissue premature leaf drop Conifer Blights Flower Blight.... Areas on leaves that usually run along the veins overwinters on dead Platanus spp and rates drying! Research and experience show that fungicide control of sycamore anthracnose is a common name given to a of.