Browse Weeds, Diseases and Pests Stories

A multidisciplinary team of UGA researchers aims to enhance the competitiveness of Vidalia onion growers in Georgia by providing them with the ability to confidently detect onion diseases early, enabling them to make management decisions on their crop at a critical time. These abilities, researchers say, should result in increased yield and quality of marketable onions and an overall increase in efficiency and productivity.

The spotted lanternfly (Lycorma delicatula), an invasive insect pest that first arrived in Pennsylvania in 2014 and has since spread to 16 additional states in the Eastern U.S., has state governments urging residents to be on the lookout and to use caution when moving firewood. The insect’s preference for feeding on the tree of heaven (Ailanthus altissima) — another invasive species — has led to significant pest reservoirs, affecting vineyards and other agricultural sectors, including hardwoods and other ornamental and fruiting trees.

As antimicrobial resistance grows, the world faces a deadly adversary few predicted: fungus. The battle against pathogenic fungi is raging, and UGA researchers are on the frontlines. “The fungus starts to direct the ant’s behavior, telling it where to go, what to do, like a puppeteer with a marionette. And it gets worse,” Dr. Neuman begins. “The fungus needs food to live, so it begins to devour its host from within, replacing the ant’s flesh with its own. But it doesn’t let its victim die. No, it keeps its puppet alive.”

As students return to school, head lice often become a common concern for administrators and parents. Understanding how to prevent and manage head lice infestations is crucial for maintaining healthy environments in schools and at home. Allison Johnson, the Pesticide Safety Education Program coordinator for the University of Georgia, provides essential information and advice to help mitigate the spread of this pesky pest.

As autumn approaches and the stifling heat of summer begins to cool down, spending more time outdoors may be on your radar. But, as Georgia is home to many stinging and biting insects, fall fun can turn into a minefield of discomfort. Elmer Gray, a research entomologist with the University of Georgia College of Agricultural and Environmental Sciences and specialist for UGA Cooperative Extension, shares information on some of the season's most common culprits, urging residents to stay vigilant and take preventive measures.

As overnight temperatures increase during the summer, so do mosquito populations, bringing with them the risk of mosquito-borne diseases. In late June, the Centers for Disease Control warned that the U.S. is seeing an increased risk of dengue fever, a sometimes fatal viral disease transmitted by mosquitoes. This disease has been across much of South and Central America and the Caribbean, and with about 1,500 cases, the U.S. Commonwealth of Puerto Rico has declared a public health emergency over dengue.  

It’s summertime, and there are a few things residents of the Deep South can count on this time of year — heat, humidity and insects. Fireflies and cicadas are popular topics these days, but of all the creeping, crawling, buzzing creatures that bug us, one is met with near-universal revulsion — the cockroach. Whether you’re new to the South or a lifelong resident, you’ve likely run into one of the several species of cockroaches that are common in the region.

Stanley Culpepper has dedicated the length of his career to supporting farmers in their mission to feed and clothe the world. For the past 25 years, Culpepper has been a weed science specialist for University of Georgia Cooperative Extension and a College of Agricultural and Environmental Sciences faculty member. Recently his job has become increasingly complex as mounting challenges around the availability of pesticides — primarily herbicides — have taken center stage in agricultural production.

Spring is approaching and now is a great time to schedule a community clean-up event. These events can be organized by citizens, civic groups or local governments and often have a theme or targeted area in a town or community. Clean-up events provide many benefits to a community including raising the awareness of litter prevention, developing pride in our communities and restoring the natural environment.

A multidisciplinary team of researchers at the University of Georgia College of Agricultural and Environmental Sciences recently renewed a $4 million contract with the U.S. Department of Agriculture Agricultural Research Service to build upon their previous work to develop targeted interventions to mitigate the impact of silverleaf whiteflies on vegetable production in the Southeast. UGA entomologist Allen Moore leads the research team in collaboration with USDA ARS in Charleston, South Carolina.