EN
Pesticide poisoning of honey bees can be a serious problem. Honey bees provide a valuable service to agriculture because they are known as the most important pollinators of cultivated crops. Efforts should be made to protect honey bees whenever pesticides are used. The analyses of samples of poisoned bees revealed that the most common cause of poisoning of bees were pyrethroids, organophosphorus insecticides. Ignoring the safety precautions included in the label of plant protection products as well as unauthorized use of pesticides led to mortality of numerous honeybees families. Moreover, the use of biocides recommended by some specialized companies for harmful insect regulating such as mosquitoes caused bee poisoning on large scale. LD50 calculated for bees poisoned by biocides was dozen to several thousand times higher as compared to LD50 for bees poisoned by plant protection products. The protection of honeybees has become even more critical in recent years.