Stimulating top dressings play an important role during the period of spring development. The purpose of our research was to study the effect of the biostimulator "Cloramicob" on the growth, development and honey productivity of bee colonies when feeding bees in the spring in the absence of honey flow. It was found that the optimal dose of the Cloramicob biostimulant used in the spring feeding of bees in the absence of supporting honey collection is 2.5 ml/l of sugar syrup. Feeding bees with a mixture of sugar syrup and a biostimulant in the amount of 1.0 l of the mixture per bee colony every 7 days, in the absence of supporting honey collection, increases the strength of bee colonies by 6.67-31.33%, the number of printed brood by 3.30-44 .73% and honey production by 15.68-18.12%.