H. pruni is the most dangerous aphid on plum in Bulgaria. The aim of the study was to establish the efficacy of insecticides from different groups, for effective control of this pest in different farming systems. The experiments were conducted in the laboratory. Three neonicotinoids were used (imidacloprid, acetamiprid, thiamethoxam), three botanical insecticides with active ingredients pyrethrum, nicotine and azadirachtin, as well as two microbial products based on Beauveria bassiana and Paecilomyces fumosoroseus. All insecticides are registered in Bulgaria for other pests, except for NicoTab (nicotine), which is to be registered.
Experiments have shown that all three neonicotinoides used have an excellent effect against H. pruni. “Naturalis” (Beauveria bassiana) showed the best results from the tested microbial insecticides. Pyrethrum-based and nicotine-based products showed very good action from the botanical insecticides.