Skip to Content

Managing Joro Spiders in the Landscape

The Joro spider, Trichonephila clavata, (Fig. 1) is a native of Japan and east Asia that was first documented in the US in 2014 in NE Georgia (Fig. 2). The initial infestation was centered around Braselton and Hochton, GA along I-85.  By 2022 the spiders had spread about 75 miles…
Read More

Fall webworm: Biology and management

The fall webworm, Hyphantria cunea (Drury)(Lepidoptera: Erebidae) (Fig. 1) is a polyphagous caterpillar pest of ornamentals and trees in Georgia. It is known to feed on more than 600 species of plants including row crops, herbaceous plants, shrubs, fruit and ornamental trees in orchards, nurseries and landscapes. Fall webworm larvae…
Read More

Chilli thrips: Biology and management in the nursery

Chilli thrips, Scirtothrips dorsalis (Fig. 1) is a recently invasive thrips species in the United States. Currently, chilli thrips infest more than 150 crops worldwide including strawberries, cotton, tea, citrus, and peppers as well as many ornamental plants. The pest has become increasingly problematic in nurseries because of its wide…
Read More

Redheaded Flea Beetle: An Ornamental Nursery Pest

The redheaded flea beetle (RHFB), Systena frontalis (F.) (Coleoptera: Chrysomelidae) (Fig. 1) is a serious insect pest in ornamental nurseries. It is also referred to as cranberry flea beetle in cranberry and blueberry systems in the northern US. The adult RHFB causes serious feeding damage to the foliage of a variety…
Read More

Azalea bark scale

Azalea bark scale (ABS, Eriococcus azalea, Figure 1) poses a serious threat to azaleas, rhododendron, and Pieris (Andromedas) in Georgia. ABS is a soft scale insect; unlike armored scale insects, the nymph and female soft scales secrete a protective coating of waxy crust on their body that cannot be separated from…
Read More

Scale insects on ornamental plants

Scale insects are very common pests of landscape trees and shrubs, yet are often overlooked when scouting. They can, however, be responsible for chlorosis, branch die-back or ultimately death of the plant. Scales are broadly categories as soft and armored scales. Soft scales produce soft, cottony, powdery or waxy substance…
Read More