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Mites and their management in turfgrass

Plant feeding mites can cause serious damage in turfgrass systems, and drought-stressed turfgrass is particularly prone to mite infestation. Mites are generally active in turfgrasses from spring into fall. They feed on plant sap and, in some cases, also inject toxins into plant tissues or manipulate plant growth, thereby producing…
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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…
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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…
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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…
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Sugarcane beetle: An emerging insect pest in Georgia turfgrass

Introduction The sugarcane beetle (Euetheola humilis, family: Scarabaeidae) (Fig. 1) has been an important pest for over 100 years in many crops, including sugarcane, corn, sweet potato, and rice. It is a native species and is commonly found in turfgrass. A low number of beetles in an area is not…
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Mite Vector of Rose Rosette Virus

In the 1800s the multiflora rose was introduced into the United States from Japan, China, and Korea. Beginning in the 1930s, the USDA encouraged the use of multiflora roses because they were said to be ideal for erosion control and living fences, making them a popular choice for planting throughout…
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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…
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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…
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