Holly Diseases & Insect Pests
Diseases Black Root Rot: Black root rot is caused by the fungus Thielaviopsis basicola. This fungus primarily affects the root system and reduces plant vigor. Aboveground symptoms may include...
Category: Trees
Integrated Pest Management (I.P.M.) for Aphids
Aphids can be a problem in the home landscape, vegetable garden, or fruit garden. They can vector many viral diseases and can cause significant damage to desired plants if the aphid population is...
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...
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...
Dogwood Diseases & Insect Pests
The flowering dogwood (Cornus florida) is a small, deciduous ornamental tree that is native throughout the eastern United States. Although dogwoods are well adapted to South Carolina, they can be...
Crape Myrtle Diseases & Insect Pests
Crape myrtles (Lagerstroemia indica) are essentially trouble-free small trees. The most common problems include powdery mildew, Cercospora leaf spot, aphids, Japanese beetles and sooty mold. More...
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...
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 and Pest Diagnostic Clinic sample submissions for...
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,...
Leyland Cypress Diseases, Insects & Related Pests
Leyland cypress (x Cupressocyparis leylandii) has grown in popularity in the Southeast over the last few decades, especially in its use as a fast-growing, screening plant. With the increased...
Oak Diseases & Insect Pests
Although oak trees (Quercus species) are well adapted to South Carolina, they can be commonly affected by many pests and diseases. Maintaining healthy oak trees, by following recommended cultural...
Leaf & Needle Drop
A well-cared-for plant in the landscape that suddenly begins dropping leaves or needles can be a very troubling sight. There is usually no need to be alarmed, since leaf and needle drop often occurs...