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Studies on the usefulness of cumaphos and amitraz applied as systematic drugs in the control of varroa jacobsoni invasion



Studies on the usefulness of cumaphos and amitraz applied as systematic drugs in the control of varroa jacobsoni invasion



Medycyna Weterynaryjna 43(4): 230-233



Cumaphos which acts systematically is used in the control of Varroa jacobsoni mites infestation also in GFR and in Bulgary. Some substances of Cumaphos-like activity were produced in our country. Their aceton solutions with emulsyfier contain 40 mg of an active substance per cm3. In the studies the following substances were used: VJ-11, VJ-12, VJ-36, VJ-45, VJ-52, VJ-53, VJ-55, VJ-58, VJ-60, VJ-67 and amitraz. Moreover Cumaphos (VJ-44) was also used. The examinations on therapeutic efficacy and eventual side effects were performed in autumn 1986. An aliquot of 1.0 cm3 of the tested drug was added to 50 cm3 of water and the water emulsion was uniformly applied topically to bees in the occupied beeways. Two applications at an interval of 7 days were used. The obtained results confirmed a good efficacy of Cumaphos for the control of varroasis. Similar effects were also noted with VJ-45, VJ-52, VJ-53 and VJ-58. The above antiparasitic drugs are practically harmless for bees.

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