By Jennifer Dorsett
South Korea has been invaded by red imported fire ants, and the country is asking for Texas A&M University’s help to stop the spread of the pest.
Dr. David Ragsdale, Texas A&M entomology department head in College Station, said in an interview fire ants had previously spread to other parts of Asia but were new in South Korea. Fire ants are native to South America and have infested most of Texas, as well as other parts of the U.S.
Fire ants have been in Texas since the 1950s and cause harm to native wildlife, including deer fawns, horned lizards, quail and other ground-nesting birds.
Texas A&M University associate professor of entomology Dr. Hojun Song was contacted by researchers at the Korean Animal and Plant Quarantine Agency shortly after the fire ants were discovered in the country.
“Apparently, red imported fire ants have been reported from Busan, a port city in the southern part of Korea,” Song said in an interview with AgriLife Today. “However, there are not many fire ant experts in Korea, so they reached out to me for help in identifying one or more experts at Texas A&M.”
Entomologists at Texas A&M are considered world authorities in management and control of the pests, according to Ragsdale.
The department expects Korean entomologists to visit in September to learn more about the pests and how to effectively control their spread.
Ragsdale said the method of transport and cause of the subsequent invasion is shipping containers.
“These containers are not so airtight or ant-proof, and when these sit in a port, colonies of ants can set up shop inside the containers and in a few weeks arrive in Asia or literally anywhere with a port,” Ragsdale said. “Currently, only about two percent of these containers are actually inspected, so it’s a problem that’s not going away overnight.”