Method of application of tylosin, an antibiotic for American foulbrood control, with effects on small hive beetle (Coleoptera: Nitidulidae) populations

被引:30
作者
Elzen, PJ [1 ]
Westervelt, D [1 ]
Causey, D [1 ]
Ellis, J [1 ]
Hepburn, HR [1 ]
Neumann, P [1 ]
机构
[1] USDA ARS, Kika De La Garza Subtrop Agr Res Ctr, Weslaco, TX 78596 USA
关键词
honey bee; American foulbrood; tylosin; small hive beetle;
D O I
10.1603/0022-0493-95.6.1119
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The method of application of the antibiotic tylosin (Tylan) for control of oxytetracycline-resistant American foulbrood (Paenibacillus larvae White) was tested in honeybee (Apis mellifera L.) colonies. A powdered sugar mixture with tylosin. applied as a dust, was efficacious in eliminating American foulbrood symptoms at a rate of 200-mg Tylan per 20 g of powdered sugar, applied at weekly intervals for 3 weeks. A second method of treatment consisting of Tylan mixed with granulated sugar and vegetable shortening and applied once as a patty, at all equivalent total dose as the dust method, to diseased colonies also effectively eliminated symptoms of disease. In all colonies treated with patties. however, small hive beetle (Aethina tumida Murray) populations significantly increased, compared with the powder sugar method or untreated controls. Bee populations ill patty-treated colonies also,were significantly reduced. most likely the result of the invasion and proliferation of adult and larval small hive beetles, Such reduction in colony strength was not seen in dust-treated colonies. Because of the obvious damaging populations of small hive beetles, concerns about development of disease resistance, unknown n risks of residues, and lack of support by regulatory agencies for the use of the patty method, the use of the dust method of tylosin is greatly favored over the patty method.
引用
收藏
页码:1119 / 1122
页数:4
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