Category: Garden Diseases

Garden Diseases, Tree and Shrub Problems

Fire Blight in the Ornamental Home Garden

Fire Blight caused by Erwinia amylovora, is a serious bacterial disease that affects many members of the rose family (Rosaceae), such as purple sand cherry, apple, crabapple, quince, pear, plum, mountain ash and more. The trees and shrubs that have been infected have the appearance of having been scorched by fire. The disease is systemic and spreads rapidly leading to extensive damage, even death. There is … Continue reading Fire Blight in the Ornamental Home Garden

Unknown's avatarKimberley PacholkoLeave a comment
Edible Gardens, Garden Diseases, Tree and Shrub Problems

Black Knot Disease of Plum and Cherry Trees

Black Knot Disease otherwise known as Dibotryon morbosum, is a serious, yet fairly common fungal disease of plums and cherry trees (including choke cherries). Other members of the Prunus family (like peaches, nectarines, apricots and almonds) can also be affected but it is less common. The affected trees develop hard, black elongated swellings, called knots, thus the name black knot. These knots are scattered throughout … Continue reading Black Knot Disease of Plum and Cherry Trees

Unknown's avatarKimberley PacholkoLeave a comment
Garden Diseases, Tree and Shrub Problems

Eastern Filbert Blight On Harry Lauder’s Walking Stick

Eastern Filbert Blight is a disease caused by the fungus – Anisogramma anomola and is native to the northeastern United States and eastern Canada (although it has appeared in British Columbia, as early as 2001). Hazelnuts native to this region (Corylus americana) have proven to be more resistant to the disease (some are even immune) than the imported European hazelnuts (Corylus avellana). For Harry Lauder’s Walking Stick, a contorted hazelnut (Corylus avellana … Continue reading Eastern Filbert Blight On Harry Lauder’s Walking Stick

Unknown's avatarKimberley Pacholko2 Comments
Garden Diseases, Tree and Shrub Problems

Boxwood Blight Verses Volutella Blight; Symptoms, Causes and Treatment

Boxwood Blight Symptoms and Causes Boxwood Blight (also known as Cylindrocladium buxicola) is an aggressive fungal disease caused by the fungi Calonectria pseudonaviculata.  This disease strikes healthy Boxwood, quickly causing mass defoliation. You will typically see Boxwood Blight flair up during rainy or humid seasons, where the leaves stay wet for extended periods of time. If the fungi are present during ideal conditions, they will begin … Continue reading Boxwood Blight Verses Volutella Blight; Symptoms, Causes and Treatment

Unknown's avatarKimberley Pacholko4 Comments