POPULATION MANAGEMENT OF MYZUS PERSICAE (SULZER) IN SOLANUM TUBEROSUM AGROECOSYSTEM USING CHEMICAL AND BIOLOGICAL PRODUCTS.

Myzus persicae produces significant economic losses in the agroecosystem of Solanum tuberosum, through direct and indirect damage. The aim of this study was to control the population of Myzus persicae, in the potato crop, by applying the substance acetamiprid and biological products based on potassium salt (Kabon and Konia) and Bacillus thuringiensis (Bitoxybacilin). The study included seven variants, acetamiprid was applied in three doses (0.13 l/ha; 0.09 l/ha; 0.08 l/ha), 0.900 l/ha was applied in the variants treated with Kabon and Konia K Plus and 1.0 l/ha Bitoxybacilin. The efficiency of the biological and chemical products was compared with the control variant (untreated). Phytosanitary products were applied on 27.05.2022. The efficacy of the treatments was assessed 3, 7, 14, 21, 28 days after application, by analyzing 25 plants/variant. On the day of the treatments application, the number of individuals of Myzus persicae was 274-284/25 plants. Acetamiprid 0.13 l/ha significantly reduced the aphid population. Among the biological products, Konia K Plus stood out. 28 days after application, the effectiveness of the products to control the Myzus pericae species decreased. [ABSTRACT FROM AUTHOR]