DATE: 10/02/98 CONTACT: Dr. Neil Ogg, (864) 646-2120 Dr. Mike Hood, (864) 656-0346 WRITER: Tom Lollis, (803) 284-3343 New Bee Pest Found in More S.C. Counties CLEMSON -- A South African beetle identified as a pest in honeybee hives has spread to 14 South Carolina counties. The small hive beetle was first detected in July in Charleston, Berkeley and Dorchester counties by Clemson University Department of Plant Industry inspectors, according to Neil Ogg, director of Regulatory and Public Service Programs at Clemson University. The beetle has since been found in hives in the following counties: Bamberg, Barnwell, Beaufort, Colleton, Florence, Hampton, Jasper, Lexington, Orangeburg, Richland and Sumter. "It's just sickening what they can do to a hive," Ogg said. The adults and larvae of the beetle are found in both active bee hives and in stored bee equipment. They feed on honey and pollen. The larvae tunnel through combs, damaging the hive. The adult beetles are known to eat honeybee eggs. The adult beetles defecate in honey and cause it to ferment, making it unfit for consumption by either humans or bees. The spoiled honey has to be discarded. Inspector Fred Singleton has the most experience tracking down the beetle. He said the first symptom beekeepers will notice in an infected hive is a wet appearance on the tops of the frames of honey supers. Ogg said beekeepers and regulators fear that the beetle is being spread by shipments of package bees. The beetle has been found in at least six southern Georgia counties, Atlanta and in Florida. He said beekeepers should buy package bees only from reputable producers who can certify that their packages are free of beetles. Jack Jackson, head of the Department of Plant Industry, has asked beekeepers to check their hives for the beetles. When in doubt, specimens can be sent through Clemson Extension county offices for identification or directly to Plant Industry, 511 Westinghouse Road, Pendleton, S.C. 29670. The adult beetles can be found on the bottom board of the hive and often on the hive inner cover. They are small, about the size of the honeybee's abdomen. Mike Hood, Clemson Extension bee specialist, said no chemical controls are registered for direct use in hives to combat the beetle. However, Von McCaskill, head of the Department of Pesticide Regulation, said that under Section 2ee of the 1978 amendments to the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) it is legal to use any pesticide for a pest not stated on the label as long as the site of application is on the label. Hood said that means beekeepers could use, for instance, a compound labeled for fire ant control in a fire-ant infested area as long as they follow proper procedures to prevent harm to their bees. "They could use a granular material late in the day when bees are not active and water it in well. By morning it should all be soaked into the soil with no puddles of pesticide around to kill bees when they start foraging again," he said. Hood said beekeepers should extract honey from supers immediately following removal from the colony, since beetles can build up rapidly in stored honey supers. They should also keep colonies well-fed and free of disease and other parasites such as mites. In South Africa, producers found that the small hive beetle was a secondary pest that usually attacks colonies already weakened by other problems. "The more things you can do to maintain a strong colony, the better off you'll be," he said. He said beekeepers should not stack or store infested supers onto strong colonies. They should also remember that supering colonies, making splits, exchanging combs or the use of Porter bee escapes can spread the beetles or provide room for them to become established away from the cluster of protective bees. Beekeepers should also monitor colonies to make sure the bees are able to rid themselves of both larval and adult beetles. Hood said bees are not able to penetrate the beetle's hard shell with their stingers, but they can carry beetle larvae out of the hive as they would a dead bee. "South African bee experts say bees will carry the larvae as much as 150 feet away from the hive before dropping them," Ogg said. Hood said preventive treatments in areas where the beetle has not been found are not necessary. The major infestations seem to be in the southeastern coastal plain. Ogg said researchers in Florida report that freezing honey in the comb appears to kill both larvae and wax moth eggs and larvae. Soil conditioning agents may also affect pupation of the beetle. They are using muriate of potash to see if it will act as a deyhdrating agent, similar to boric acid crystals for roach control in urban environments. Florida researchers also say certain nematodes and two strains of Bacillus thuringiensis show promise as soil amendments for control in the pupal stage. END