Wpływ lewamizolu na poziom białka całkowitego w hemolimfie pszczół z rodzin zarażonych roztoczem Varroa destructor

The influence of levamisol on the Ievel of total protein in haemolymph of bees infected with Varroa destructor. The studies were performed in 1997 in bee colonies with carnica queens. Levamisol in dose 2,5 mg/l and 5 mg/l of sugar syrup was given to experimental group, while the control one was treated with the same dose of sugar syrup. From May to September, once a month, the segments of honeycombs containing 15-17 day brood were taken for farer housing. The level of total protein was investigated in the haemolymph of freshly hatched bee workers. lt was found that levamisol given in sugar syrup did not caurse disturbances in the development of bee colonies, however, it was noticed that levamisol influenced on the rise of total protein level in haemolymph of bees and decrease of Varroa destructor infection