This is the sixth part of a series on spring tree insects. This article examines Japanese beetle, knopper gall wasp, and pine needle scale. Introduction In spring, deciduous trees break…
Introduction Fomes fomentarius, also referred to as hoof fungus, tinder fungus, horsehoof tinder fungus, horse fungus, false tinder fungus, tinder conk, tinder polypore, and ice man fungus, is a fungal…
Introduction Artist’s conk (Ganoderma applanatum), also referred to as artist’s bracket, red mother fungus, Ancient Ling Zhi, and bear bread fungus, is a bracket fungus that infects a bevy of…
Introduction Fire blight is a significant disease of various fruit trees. It is one of the most common diseases to afflict fruit trees in spring and summer. Apples, crabapples, and…
Introduction Seiridium canker is a fungal disease caused by three species of fungi in the genus Seiridium. Of the three, Seiridium cardinale is the most widespread, affecting various members of…
Introduction Honey fungus, or Armillaria, comprises a genus of parasitic fungi that infect a variety of plants. It is one of the most destructive fungal diseases in the world. The…
Introduction Kretzchmaria deusta, also referred to as brittle cinder, and previously known by the scientific name Ustulina vulgaris, is a fungus and plant pathogen that infects a wide range of…
Introduction Phytophthora root rot is one of the most significant root diseases of woody ornamentals, and herbaceous plants. It is caused by a multitude of fungus-like organisms, which infect susceptible…
Black knot (Apiosporina morbosa) is a fungal disease that infects over 25 species of Prunus. It is caused by the fungus Apiosporina morbosa. Outbreaks of black knot may occur in…
Introduction Black spot of rose is one of the most widespread plant diseases around the world. The disease is caused by the fungus Diplocarpon rosae. Black spot infections seldom kill…