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: Problems
Armyworms
Discover how to spot and control armyworms to protect your lawn and crops.
Boxwood Diseases & Insect Pests
Boxwoods (Buxus spp.) are adapted to a wide range of light conditions and prefer fertile, moist, well-drained soil, which is amended with organic matter. For information on species, varieties, and...
Azalea & Rhododendron Diseases
Rhododendrons and azaleas are some of the most popular spring-flowering shrubs in the landscape, and healthy plants can give years of pleasure. Many diseases and other problems can be prevented by...
Earwigs
Earwigs are insects in the order Dermaptera, meaning “leather wing”. They are fearsome looking insects known for the false superstition that they will burrow in the ears of humans. While they can...
Integrated Pest Management (I.P.M.) for Evergreen Bagworms
Evergreen bagworm, Thyridopteryx ephemeraeformis, is a detrimental insect pest to landscape plants that often escapes detection until there is significant plant damage. Bagworms feed on many plant...
Integrated Pest Management (I.P.M.) for Cabbage Looper
Cabbage looper (Trichoplusia ni) is a common vegetable garden pest that feeds on many different species of crops, such as: beans, broccoli, cabbage, cauliflower, and other brassica crops. Other host...
Black Twig Borer
Black Twig Borer (Xylosandrus compactus) is a species of a scolytid beetle and is one of the few ambrosia beetles that will infest healthy or stressed plants. The adult beetle is solid black, shiny,...
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...
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...