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Southern Blight - Flowers/Groundcovers

The collapse of a groundcover from southern blight When a plant or part of the plant (leaf, flower, fruit) rapidly collapses and dies this is called blight. Many bacteria, fungi, and viruses can cause blights. Most blights are favored by certain weather conditions, such as hot and humid or cool and...

Rhizoctonia Web Blight - Flowers/Groundcovers

Sweet woodruff infected with Rhizoctonia The typical symptoms of this fungal disease are a rapid blighting or dieback of the foliage during hot humid conditions. The infected plants may turn dark brown or black and will often quickly collapse. The pathogen can be seen on blighted tissue as a fine...

Powdery Mildew - Annuals, Bulbs, Groundcover, Perennials, and Vines

Back to Powdery Mildew - Trees and Shrubs Powdery mildew is the common name for the disease and symptoms caused by a closely related group of fungi. These fungi grow on the upper and lower leaf surfaces, young stems, shoot tips, flower buds and/or blossoms of plants. As they grow, they produce...

Phomopsis and Phoma Dieback of Vinca - Groundcover

Initial wilting symptoms on vinca. ***It is no longer recommended to plant Vinca minor (Periwinkle or Vinca), especially near or adjacent to natural areas because it is an alien invasive plant*** http://www.nps.gov/plants/alien/pubs/midatlantic/vimi.htm The usual symptoms on vinca include wilted...

Fungal Leaf Spots on English Ivy

Leaf spot on English Ivy. The symptoms of fungal infection on English ivy include yellow-brown or black spots or blotches on the leaves. The spots may have a yellow ring or dark border around them however usually not as vivid as with bacterial infections. Initial leaf spots will usually be circular...

Bacterial Leaf Spot and Bacterial Leaf Blight on English Ivy - Groundcover

***It is no longer recommended to plant English ivy because it is an alien invasive plant*** http://www.nps.gov/plants/alien/fact/hehe1.htm The symptoms of bacterial infection on English ivy include yellow-brown or black spots or blotches on the leaves. The spots may appear greasy or have a yellow...

Herbicide Damage - Annuals, Bulbs, Groundcovers, Perennials, and Vines

Herbicides are products designed to kill undesirable weeds, however, misapplied herbicides can cause injury to desirable landscape plantings. Symptoms of herbicide injury often involve discolored or distorted leaves and can easily be confused with other cultural or environmental problems, as well...

Overgrown Groundcovers

Renovating/thinning groundcovers such as pachysandra and ivy can be accomplished by mechanical removal such as with a lawn mower set at the highest setting. Removal of fallen debris and clean up of old leaves etc. will also help reduce the amount of moisture trapped and will promote faster drying...

Heat Stress - Annuals, Bulbs, Groundcovers, Perennials, and Vines

Leaves of flowering plants may curl due to heat stress, even when there is ample soil moisture. During periods of extreme heat, leaves curl and plants wilt when roots are unable to supply sufficient moisture to the stems and leaves. This occurs because moisture is evaporating from the leaves faster...

Winter burn/Leaf Scorch - Annuals, Bulbs, Groundcovers, Perennials, and Vines

Leaves of pachysandra damaged from winter burn Leaf scorch caused by cold winter temperatures is referred to as winter burn. Winter burn is caused by sunlight warming the leaves of plants growing in a sunny exposure during periods when the ground is frozen and the roots cannot absorb enough water...

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