I. What is Volutella Blight? Volutella blight is a fungal disease that affects a variety of trees and shrubs, causing damage to their leaves, stems, and branches. The disease is caused by the fungus Volutella pachysandrae and is most commonly found in ornamental plants such as pachysandra, boxwood, and rhododendron. Volutella blight is characterized by … Read more
What is Willow Scab? Willow scab is a fungal disease that affects various species of willow trees, including black willow, white willow, and weeping willow. The disease is caused by the fungus Venturia saliciperda and typically manifests as dark, raised lesions on the leaves, stems, and branches of infected trees. Willow scab is most prevalent … Read more
What is a Twig Blight? Twig blight is a plant disease that affects the twigs and branches of various types of plants, causing them to wither, die, or become disfigured. It is caused by various types of fungi, bacteria, or viruses that infect the plant’s vascular system, disrupting the flow of nutrients and water. Twig … Read more
What is Xylella Fastidiosa? Xylella Fastidiosa is a type of bacteria that infects a wide range of plants, including trees, shrubs, and agricultural crops. It is a xylem-limited bacterium, meaning it primarily infects the xylem tissue of plants. Xylem is responsible for transporting water and nutrients from the roots to the rest of the plant, … Read more
I. What is Frogeye Leaf Spot? Frogeye leaf spot, also known as Cercospora leaf spot, is a common fungal disease that affects a variety of trees and plants. It is caused by the fungus Cercospora sojina and primarily affects soybeans, but can also impact other crops such as cotton, tomatoes, and trees like oak and … Read more
I. What is the Hemlock Woolly Adelgid? The Hemlock Woolly Adelgid (Adelges tsugae) is a tiny, aphid-like insect that feeds on the sap of hemlock trees. Originally from East Asia, this invasive species was first discovered in the United States in the 1950s and has since spread to many states along the East Coast and … Read more
What is Plum Pox Virus? Plum Pox Virus, also known as Sharka disease, is a highly contagious viral disease that affects stone fruit trees, particularly plum, peach, apricot, and cherry trees. The virus belongs to the Potyviridae family and is considered one of the most devastating diseases affecting stone fruit crops worldwide. Plum Pox Virus … Read more
What is Pear Trellis Rust? Pear Trellis Rust is a fungal disease that affects pear trees, caused by the fungus Gymnosporangium sabinae. This disease is commonly found in pear orchards and can cause significant damage if not properly managed. Pear Trellis Rust is a type of rust disease that primarily affects pear trees, but can … Read more
What is the Emerald Ash Borer? The Emerald Ash Borer (Agrilus planipennis) is a highly destructive invasive species of beetle native to Asia. It was first discovered in North America in 2002, and since then, it has spread rapidly throughout the continent. The adult beetles are metallic green in color and measure around half an … Read more
What is a Peach Tree Borer? The Peach Tree Borer (Synanthedon exitiosa) is a type of moth that belongs to the family Sesiidae. These pests are known for infesting and causing damage to various fruit trees, with peach trees being one of their preferred hosts. The adult moths are about 1 inch long with clear … Read more