Browse Plant Pests and Diseases Stories

45 results found for Plant Pests and Diseases
Large patch disease, pictured here, can infect all warm-season turfgrasses, but centipede, St. Augustine, and zoysia are particularly susceptible. CAES News
Large patch disease, pictured here, can infect all warm-season turfgrasses, but centipede, St. Augustine, and zoysia are particularly susceptible.
Large Patch
As warm-season turfgrasses continue to green up, diseases are rearing their ugly heads. The main culprit this time of year is a fungus, Rhizoctonia solani, that causes large patch disease in lawns. Large patch can infect all warm-season turfgrasses, but centipede, St. Augustine, and zoysia are particularly susceptible.
Boxwood blight symptoms clockwise from upper left: tan to gray leaf lesions with a darker purplish border on an English boxwood; circular, tan spots with a brown border on upper leaves; tan blighted leaves and bare stems on an infected plant; blackening of stems and browning foliage; and black stem lesions on bare branch tips. (photos by Jean Williams-Woodward) CAES News
Boxwood blight symptoms clockwise from upper left: tan to gray leaf lesions with a darker purplish border on an English boxwood; circular, tan spots with a brown border on upper leaves; tan blighted leaves and bare stems on an infected plant; blackening of stems and browning foliage; and black stem lesions on bare branch tips. (photos by Jean Williams-Woodward)
Landscape Plant Diseases
If you're seeing brown areas in your landscape trees or hedges where you should be seeing green, University of Georgia Cooperative Extension can help. Wet winters and severe weather have been causing disease and other issues in landscape plants, especially Leyland cypress and boxwood.
Watermelon research at the UGA-Tifton campus. CAES News
Watermelon research at the UGA-Tifton campus.
Fusarium Rapid Test
Fusarium wilt, caused by a soilborne fungus, is one of the most damaging diseases of watermelons worldwide. Since it was discovered in 1894, it’s been a battle for producers to manage through crop rotation and chemical fungicides.
Oleander aphids, also called milkweed aphids, commonly appear on milkweed. Remove them using a wet paper towel or sticky tape. CAES News
Oleander aphids, also called milkweed aphids, commonly appear on milkweed. Remove them using a wet paper towel or sticky tape.
Milkweed Pests
With the fall migration underway for monarch butterflies through November, gardeners should soon start seeing the colorful creatures on their travels south. It's also time to be on the lookout for pests of common milkweed (Ascelpias tuberosa), the most popular milkweed plant grown in Georgia butterfly gardens.
"Skippy stands" have been more prevalent this summer, which may increase the incidence of tomato spotted wilt virus infection. (Photo by Phillip Edwards, Irwin County) CAES News
"Skippy stands" have been more prevalent this summer, which may increase the incidence of tomato spotted wilt virus infection. (Photo by Phillip Edwards, Irwin County)
TSWV Control
Come August, the state's peanut growers will either see the payoff of their spring efforts to control for tomato spotted wilt virus, or they will be planning ways to preventatively manage this persistent virus with recommendations from University of Georgia scientists.
Ambrosia beetle activity is identifiable by the toothpick-sized sawdust tubes they leave sticking out of holes bored in pecan trees. CAES News
Ambrosia beetle activity is identifiable by the toothpick-sized sawdust tubes they leave sticking out of holes bored in pecan trees.
Ambrosia Beetles
Research entomologists in the University of Georgia College of Agricultural and Environmental Sciences are using three grants to study ambrosia beetles in an effort to prevent future attacks and preserve more fruit and nut trees.
Whiteflies transmit several devastating viruses to important vegetable crops, including squash. CAES News
Whiteflies transmit several devastating viruses to important vegetable crops, including squash.
Whitefly Management
Researchers from three research institutions are using a $3.2 million grant from the U.S. Department of Agriculture to fight whiteflies on vegetable crops.
Peanut rust was discovered in Tift County in August and has UGA plant pathologists concerned heading into the final month of the growing season. Peanut rust is a dangerous disease because of how easily and rapidly it spreads from one plant to another. CAES News
Peanut rust was discovered in Tift County in August and has UGA plant pathologists concerned heading into the final month of the growing season. Peanut rust is a dangerous disease because of how easily and rapidly it spreads from one plant to another.
Peanut Rust
Georgia farmers need to be wary of peanut rust disease after it was discovered in a field in Tift County last week, according to University of Georgia plant pathologist Albert Culbreath.
UGA's College of Agricultural and Environmental Sciences is part of a collaborative effort to develop a smartphone irrigation app for pecans. CAES News
UGA's College of Agricultural and Environmental Sciences is part of a collaborative effort to develop a smartphone irrigation app for pecans.
Pecan Field Day
University of Georgia Cooperative Extension will host the Southeast Georgia Pecan Field Day in Baxley, Georgia, on Wednesday, Aug. 28.
Bermuda grass stem maggot damages the upper leaves of a forage crop. Lisa Baxter estimates about 60% yield loss in this picture. CAES News
Bermuda grass stem maggot damages the upper leaves of a forage crop. Lisa Baxter estimates about 60% yield loss in this picture.
Forage Pest Management
Drought-like conditions this summer are forcing Georgia forage farmers to delay treatments for Bermuda grass stem maggot, according to Lisa Baxter, University of Georgia Cooperative Extension forage specialist.