Powdery Mildew
Introduction Powdery mildew is the name given to a group of diseases caused by several closely related fungi. Their common symptom is a grayish-white, powdery mat visible on the surface of leaves,...
Category: Landscape
Clematis
Clematis are among the most decorative and spectacular of all the flowering vines. They are a group of mostly woody, deciduous vines, though Armand clematis (Clematis armandii) is evergreen, and a...
Sycamore Diseases & Insect Pests
Of the 10 species of sycamore (Platanus species), one species, American sycamore (Platanus occidentalis), and one hybrid, London plane tree (Platanus x acerifolia) are common in South Carolina. Both...
Maple Diseases & Insect Pests
Diseases Leaf Scorch: On maple (Acer species) trees, a number of problems cause symptoms that are generally classified as leaf scorch. Scorch symptoms are light brown or tan dead areas between leaf...
Palm Diseases & Nutritional Problems
Palm trees grown in the landscape appear carefree, but they are susceptible to many diseases, insects, and nutritional problems. Avoid many of these problems by following the recommended cultural...
Crapemyrtle Bark Scale
The crapemyrtle bark scale (Acanthococcus lagerstroemiae) is a recently introduced pest from Asia that initially infested crapemyrtles (Lagerstroemia spp.) in Texas during 2004. Since then, it has...
Armored Scale Insects & Control
Many armored scales are serious pests of ornamental shrubs, trees, groundcovers, and turfgrasses in South Carolina. Almost 40% of the Clemson Plant Problem Clinic sample submissions for home...
Oak Diseases & Insect Pests
Although many types of oak trees (Quercus species) are well adapted to South Carolina, they still may be affected by a variety of insect pests and diseases. Always maintain healthy oak trees by...
Cranberry Rootworm Beetle
The Cranberry rootworm beetle (Rhabdopterus picipes) is one of several leaf-feeding beetles and weevils that consume the foliage of woody landscape plants in South Carolina. These nocturnal-feeding...
Lenten Rose
Lenten roses (Helleborus x hybridus) make a colorful addition to the shade garden or woodland area. They flower in winter and early spring when little else is blooming. These evergreen perennials...
Photinia (Red Tip)
Photinias are large shrubs that were once used for tall hedging here in the south. The most common photinia is the appropriately named “red tip”, which is easily recognized each spring...
Indian Hawthorn
Indian hawthorns (Rhaphiolepis species and hybrids) are mostly low-growing, evergreen, flowering shrubs. With a dense mounded growth habit, they are ideal low-maintenance plants for use in small...