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Green industry webinar series

Green industry webinars are targeted to turfgrass and ornamental industry.  These webinars update the industry with current information in pest (insect, pathogen and weeds) management, cultural practices, etc., as well as offers CEUs in GA, SC and TN . The upcoming webinars are below:   September 18, 2019, Wednesday Multi-spectral…
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Avoidance and Management Tips for Summer Turfgrass Diseases

Gray leaf spot on St. Augustinegrass Gray leaf spot is active and causing epidemics St. Augustinegrass. The fungus Pyricularia grisea also affects perennial ryegrass and tall fescue in Georgia. However, the disease is particularly aggressive in St Augustinegrass. Hot humid summer weather and high nitrogen levels can make turf susceptible…
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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…
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SDHI fungicides and turfgrass disease control: An overview

Introduction The succinate dehydrogenase inhibitor (SDHI) fungicide class is the fastest growing in terms of new compounds produced and launched into the fungicide market in turfgrass and in agriculture in general.  This fungicide class, which inhibits the complex II of fungal respiration, is not new and was originally called carboxamide…
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Dealing with glyphosate resistant Poa annua in bermudagrass turf

Many bermudagrass golf courses in the transition zone wait until January to spray herbicides for annual bluegrass (Poa annua) control.  This is the time of year when bermudagrass is at peak dormancy and nonselective herbicides can be used safely for winter weed control.  Broadcast applications of glyphosate (Roundup, others) are…
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Winter and early spring turfgrass disease foes

Yellow Patch (Rhizoctonia cerealis). Sporadic infections of R. cerealis (yellow patch) have been observed in ryegrass over-seeded bermudagrass turf swards and sport fields. The disease is rare in the state, but it thrives in extended periods of wet, cloudy weather. It is a cool-temperature disease (50 to 65°F). Disease development…
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Granulate ambrosia beetle can invade ornamental nursery trees earlier than you think

Granulate ambrosia beetle (Xylosandrus crassiusculus (Mot.); Fig. 1a) is a serious pest of woody trees and shrubs in Georgia. This was previously known as the Asian ambrosia beetle. These tiny beetles were first detected in South Carolina in the 1970’s and have spread across the southeastern US. Woody ornamental nursery plants…
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Bermudagrass Stem Maggot in GA Turf

Author: Dr. Will Hudson, Department of Entomology, University of Georgia The invasive bermudagrass stem maggot (BSM), Atherigona reversura, has become a serious pest in GA hayfields since it appeared in 2010.  The fly is native to Asia but is now found everywhere in the US where bermudagrass is found.  The…
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It’s that time again……turf disease management tips for fall

Author: Alfredo Martinez-Espinoza, Plant Pathology Department, University of Georgia-Griffin Campus Large patch: To limit the severity of Rhizoctonia large patch on warm season grasses (especially on zoysiagrass), avoid nitrogen applications at this time. Regardless of fertility, preventive fungicide treatments may be required. The fungus (Rhizoctonia solani) becomes active when night temperatures fall…
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Fall armyworms are on the move

Fall armyworm (Spodoptera frugiperda) (Fig. 1) is a caterpillar pest of turfgrass and usually appear on our sod farms, lawns, or golf courses starting late August in Georgia. In spring and summer, adults of fall armyworm or moths fly north from Florida through weather fronts each year. They undergo several…
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