Browse Weeds, Diseases and Pests Stories

416 results found for Weeds, Diseases and Pests
A brood of decades-old 17-year cicadas that have been perfectly preserved. CAES News
A brood of decades-old 17-year cicadas that have been perfectly preserved.
Brood X
It has been 17 years since a set of billions of periodical cicadas emerged from their underground chambers and filled the air with boisterous buzzing and desperate mating calls.
The blue orchard mason bee or Osmia lignaria. (Photo: Scott Bauer, USDA Agriculture Research Service, Bugwood.org) CAES News
The blue orchard mason bee or Osmia lignaria. (Photo: Scott Bauer, USDA Agriculture Research Service, Bugwood.org)
Imidacloprid Residue
New research funded by the Southern Sustainable Agriculture Research and Education program and conducted at the University of Georgia shows that imidacloprid residue harms wild bees.
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.
Critical pesticide application training for pest control professionals and producers will go online for 2020. CAES News
Critical pesticide application training for pest control professionals and producers will go online for 2020.
Pesticide trainings stay virtual
University of Georgia Cooperative Extension and the Georgia Department of Agriculture are partnering to offer the Using Pesticides Wisely training program in a virtual format again this year.
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.
Cotton on the UGA Tifton campus in this 2013 file photo. CAES News
Cotton on the UGA Tifton campus in this 2013 file photo.
Three products approved
The U.S. Environmental Protection Agency (EPA) has approved new five-year registrations for two dicamba products and extended the registration of an additional dicamba product for use on dicamba-tolerant cotton and soybeans in a decision estimated to save growers and producers of the products millions of dollars in lost revenue.
A supergene is a collection of neighboring genes located on a chromosome that are inherited together due to close genetic linkage. Studying these unique genes is important to understanding the potential causes for differences among the social structure of fire ants, specifically for controlling the species and building upon the existing knowledge base. CAES News
A supergene is a collection of neighboring genes located on a chromosome that are inherited together due to close genetic linkage. Studying these unique genes is important to understanding the potential causes for differences among the social structure of fire ants, specifically for controlling the species and building upon the existing knowledge base.
Fire ant supergene
A unique study conducted by University of Georgia entomologists led to the discovery of a distinctive supergene in fire ant colonies that determines whether young queen ants will leave their birth colony to start their own new colony or if they will join one with multiple queens. Researchers also found that ants were more aggressive toward queens who don’t possess the supergene, causing colony workers to kill them. This critical finding opens the door to new pest control methods that may be more efficient in eradicating problematic fire ant colonies. 
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.
Yellow jacket encounters spike this time of year. As we spend more time outdoors, yellow jackets and wasps will be seen foraging more often. CAES News
Yellow jacket encounters spike this time of year. As we spend more time outdoors, yellow jackets and wasps will be seen foraging more often.
Cool Weather Pests
As the weather cools across the state, several fall insects will begin to take center stage around Georgia homes. Be on the lookout for these nuisance pests and make preparations to deter them from entering your home for the winter.