Abstract:
Process for feeding bees, which includes feeding them in spring with a mixture of 50% sugar syrup and 1.0-3.0 ml / L aqueous solution containing dehydroabietinic acid 4.91 g, KOH 1, 08 g and distilled water up to 200 ml, in the amount of 1.0 L of mixture in a family of bees, every 7 days, from April until the main harvest.