What is Cypress Canker? Cypress canker, also known as cypress dieback, is a fungal disease that affects cypress trees. It is caused by the pathogen Seiridium cardinale, which infects the tree through wounds or natural openings. Cypress canker is most commonly found in Leyland cypress trees, but it can also affect other species of cypress … Read more
What is Sooty Mold? Sooty mold, also known as black mold or soot fungus, is a type of fungus that grows on the surface of plants, trees, and other surfaces. It appears as a black, powdery substance that can cover leaves, branches, and even fruit. Sooty mold is not a plant disease itself, but rather … Read more
What is Dogwood Anthracnose? Dogwood Anthracnose is a fungal disease that affects flowering dogwood trees (Cornus florida). The disease is caused by the fungus Discula destructiva and primarily impacts trees in the eastern United States. Dogwood Anthracnose can cause severe damage to infected trees, leading to leaf blight, twig dieback, and even death if left … Read more
What is Brown Spot Needle Blight? Brown Spot Needle Blight is a fungal disease that affects coniferous trees, particularly pine trees. The fungus responsible for Brown Spot Needle Blight is called Mycosphaerella dearnessii. This disease is most commonly found in regions with humid climates, as the fungus thrives in moist conditions. Brown Spot Needle Blight … Read more
What is Shot Hole Disease? Shot Hole Disease is a fungal infection that affects a variety of trees, causing circular or irregularly shaped holes to form on the leaves. The disease is caused by several different species of fungi, including Wilsonomyces carpophilus and Coryneum beijerinckii. These fungi infect the leaves of trees, causing them to … Read more
What is Laurel Wilt? Laurel Wilt is a devastating disease that affects trees in the Lauraceae family, including avocado, redbay, sassafras, and bay laurel. It is caused by a fungus called Raffaelea lauricola, which is spread by the ambrosia beetle, Xyleborus glabratus. The disease was first discovered in the southeastern United States in the early … Read more
What is Rosellinia Needle Blight? Rosellinia Needle Blight is a fungal disease that affects various species of coniferous trees, particularly pine and spruce trees. The disease is caused by the fungus Rosellinia necatrix, which infects the needles of the trees, leading to browning, wilting, and eventual death of the affected needles. Rosellinia Needle Blight can … Read more
What is Oak Wilt? Oak Wilt is a deadly fungal disease that affects oak trees, primarily in the United States. The disease is caused by the fungus Ceratocystis fagacearum, which blocks the water-conducting vessels of the tree, leading to wilting and eventual death of the tree. Oak Wilt can spread rapidly through a stand of … Read more
What is Verticillium Albo-atrum? Verticillium Albo-atrum is a soilborne fungus that infects a wide range of plants, including trees, shrubs, and herbaceous plants. It belongs to the genus Verticillium, which contains several species known to cause vascular wilt diseases in plants. Verticillium Albo-atrum specifically targets trees, causing a condition known as Verticillium wilt. This fungus … Read more
What is White Pine Blister Rust? White Pine Blister Rust is a fungal disease caused by the pathogen Cronartium ribicola. This disease primarily affects white pines, including Eastern white pine (Pinus strobus) and sugar pine (Pinus lambertiana). White Pine Blister Rust is a significant threat to these tree species and can have devastating effects on … Read more