Proceedings of the International Symposium on Recent Research on Bee Pathology
... till 15th of September according to the instruction of Varroa Disease Control by the Veterinary Department of the Ministery of Agriculture). ... Among others the analogues ofcoumaphos, enolophosphoranes, thiazoline and fluvalinat acting through the bee haemo- lymph were examined. ... Therefore the chemical control became the main method to eradicate the Varna parasites in Poland. During 204.
| Title | : | Proceedings of the International Symposium on Recent Research on Bee Pathology |
| Author | : | Wolfgang Ritter (bee pathologist.) |
| Publisher | : | - 1990 |
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