Laboratory Evaluations ofSyzygium aromaticum(L.) Merr. et Perry Essential Oil AgainstVarroa destructor
| Autor: | Pedro N. Bailac, Edgardo G. Sarlo, Liesel Brenda Gende, Sergio R. Ruffinengo, Martin Javier Eguaras, Marta I. Ponzi, Matías Maggi |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Journal of Essential Oil Research. 22:119-122 |
| ISSN: | 2163-8152 1041-2905 |
| Popis: | The oil obtained by hydrodistillation of the foral bottom of Syzygium aromaticum (L.) Merr. et Perry was analyzed by GC and GC/MS. Eugenol was the main constituent in the oil (86.7%). The biological activity of the oil applied to Varroa destructor and Apis mellifera was evaluated in two laboratory tests. Mite lethality was estimated using a complete exposure method test with the oil at different concentrations, and a systemic administration method of oil at different concentrations diluted in syrup was placed in feeders for bees. The LC50 for complete exposure method at 24 h was 0.59 μL/dish. The inferior and superior limits obtained were 0.47 x 10−6 μL/dish and 1.22 μL/dish, respectively. LC50 estimated at 48 h showed a slight decrease as compared to that recorded at 24 h. Ratio selection (LC50 of A. mellifera/LC50 of V. destructor) for complete exposure method was 26.46 and 13.35 for 24 h and 48 h, respectively. Regarding the systemic administration method, mites LC50 at 24 h was 12,300 ppm. Th... |
| Databáze: | OpenAIRE |
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