cankers


Sycamore Tree Fungus Powdery Mildew
Sycamore Tree Diseases¬† Anthracnose   Symptoms Dead twigs and branches have sunken cankers. Bud death followed by new bud formation and more bud death results in witches’ broom-like proliferation of branch ends as well as very crooked branching patterns. Black fungal fruiting structures are visible on the bark covering newly […]

Sycamore Tree Diseases – Symptoms & Control


Rose Shrub Diseases - Virus
Rose Diseases Anthracnose   Symptoms Dark purple to black spots are bordered by a narrow, dull-brown band. Centers of spots turn gray and fall out. Spots similar to leaf spots form on canes.   Management ZeroTol Fungicide is a ready to use spray that provides immediate control for anthracnose on […]

Rose Diseases: Kockouts & Double Knockout Roses


Blue and Norway Spruces are susceptible to a branch killing disease called Cytospora Canker. Cankers are dead, sunken areas of bark and underlying wood that form on the lower branches, eventually making its way towards the top of the tree. Resin flows out of the cankers and may drip down […]

Cytospora on Spruce



  Cherry Tree Diseases   Black Knot   Symptoms Dark-brown to black, hard swellings form on twigs and branches. At first these galls are small but continue to enlarge each year, becoming very rough. Each Spring, galls are covered with dark, olive-green, felt-like growth. Branches may be girdled and die. […]

Cherry Tree Diseases