Copper Fungicide Used to Kill Blue Mold in Evergreen Trees. Avoid pruning trees when branches are wet. Reduce disease pressure by removing and disposing of fallen (infected) needles. See photo - credit U.S. Forest Service. Green Machine Lawn Care for a free quote. Again, for best results the Fungisol should be injected in the early spring when there is evidence of new growth, indicating that the tree has emerged from winter dormancy. Proper pruning helps to prevent further spore spreading to healthy branches. The “fruiting structures” can be black, orange-red, or tan, depending upon the fungus. Thinning of the tree or shrub helps to improve air flow, increases sun light and thus helps improve the plants overall vigor. They weaken the overall vigor of the plant. See photo - credit, For help identifying health care needs in your landscape please. Since disease weaken the trees and shrubs vigor it is also in the best interest of your valued plants to be soil treated and deep root fertilized when and as needed. The mission of Branch Tree Service is to provide care and treatments which meet your needs. Early spring dormant and needle development stage treatments will help protect against new disease fungus outbreaks. Thin out or remove shrubs and trees that are blocking sunlight and air movement. Mix with a gallon of water and a dash of mild soap. And when disease infections are allowed to spread year after year their toll becomes evident as you can see a noticeable decline in the trees and shrubs health and beauty. Finding a fungal fruiting structure on a dead needle is not immediately proof that the tree has a needlecast disease. Needlecast fungi form small structures on the infected needle forming thousands of spores. With the help of tree care specialists, like professionals at Green Machine Lawn Care, who have been providing services and treatment for Evergreen trees affected by the needlecast disease in the Northeastern PA area for over 37 years, there is a treatment to save the health of your trees. The needles become infected. Uncontrolled tip blight infestations will return every year, weakening and eventually killing trees. Contact a professional to inspect the tree. The Sphaeropsis sapinea fungus responsible for the disease normally targets mature, cone-bearing trees. Once infected the only method of control is to remove so to avoid and minimize the disease spread or other plants in the general area. Which chemicals provide the best protection. Needle cast diseases occur when different fungi infect the new needles on pines, spruce, Douglas fir, and true fir. The use of Dormant Oil as well as other targeted insecticides should also be part of any plant disease managed care program. Blue molds are members of the Penicillium species of fungi. In addition to cultural practices, fungicides will prevent the spread of Needlecast Disease. It is recommended to apply the fungicide for two years for best results. Homoptera insects, (such as aphids) feed on fungus and thus create yet another challenge for the trees over all vigor. Remove tall weeds that surround the tree to increase air movement to promote drying of the needles. The remaining needles are the current season’s new growth. The good news is that there is progress being made in these areas. For help identifying health care needs in your landscape please contact a professional arborist here at Branch Tree Service, Inc. © 2019 Branch Tree & Landscape Service, Inc. Common Fungal Diseases on Evergreen Trees and Shrubs, Plant diseases rarely kill the tree or shrub quickly. Evergreen Needle Cast Fungicides: Treatments of these diseases often depends on the extent of the infection, the type of fungus, and the impact they will have in any particular landscape. Small trees can be sprayed with a product containing the active ingredient chlorothalonil. Some diseases such as "Root Rot" can seldom or ever be treated with any level of success. According to studies from Penn State University, “we have a lot to learn about when these fungi attack a tree”. Trees that have a diameter of 2 inches or more should be treated with microinjection of Fungisol. It is recommended to apply the fungicide for two years for best results. Mix the solution thoroughly and continuously throughout application. If you suspect your Evergreen has Needlecast Disease, contact the professionals at Green Machine Lawn Care for a free quote. In terms of fungal infections many fungicide treatment methods work as a preventative but not as a means of killing existing infections. Apply a second foliar application when needles are fully elongated, which would be 2 – 4 weeks later. Evergreen trees and shrubs are vulnerable to several common fungal diseases that are often not fatal to otherwise healthy plants. These treatments should not be applied until a qualified arborist has reviewed your particular landscape and assessed if the plants should be fertilized, with what method and type of material and when, (not all things are the same when it comes to fertilizing your trees and shrubs). These infections can cause an evergreen to appear sick or dying and greatly weaken plants. The symptoms of needlecast disease are not always noticeable until the following winter or spring season. There are many sources of fungal diseases that can cause an evergreen to appear sick or dying and greatly weaken the overall health of the evergreen trees and or shrubs. When is the best time to apply a fungicide? Trees that have a diameter of 2 inches or more should be treated with microinjection of Fungisol. Since disease weaken the trees and shrubs vigor it is also in the best interest of your valued plants to be soil treated and deep root fertilized when and as needed.