The effectiveness of biological and chemical systems for protecting potatoes from harmful organisms in the central zone of the Krasnodar region

The biological and chemical protection system’s influence on the soil mycological composition, potato plant biometric indicators, yield structural indicators, productivity, as well as the potato tuber quality has been studied. It was determined that after the biological protection system application, the genus Penicillium fungi number decreased by 4 times, the genus Aspergillus – more than 2 times, Trichoderma sp. content – 2.5 times. There was an increase in the stem number in the variant with biological protection by more than 2 times, compared with the control, and by 25%, compared with the chemical protection variant. The plant height in the two variants was 6.4-7.3 % higher than the control values. The potato tuber total number per bush in the biological protection variant increased by 40 %, and the tuber mass increased by 12.4-61.7% in comparison with other variants. The yield increase was 157.3 c/ha (50.4%) and 128.0 c/ha (39%) for the biological and chemical systems, respectively. The nitrate amount was within the normal range in all variants. The vitamin C highest content was noted in the variant with the biological protection application (9.3 mg/100 g of raw substance). The starch amount varied from 20.8% to 21.3% in all variants

Influence of a biological fungicide on the development and spreading of

The effect of the biofungicide BFTIM KS-2, Zh on the development and spreading of the Alternaria alternata fungus on vegetable crops (tomato, pepper, eggplant) was studied using classical and modern methods of phytosanitary monitoring. The research was carried out in Krasnodar region in the Pavlovsky District, on the production fields of the ZAO Yubileinoye. To assess the development and spreading of the disease, the classical visual method was used, as well as a modern method for determining the congestion rate of plantings using the OZR-1mp spore trap.The article presents data on the development and spreading of A. alternata, the number of fungal spores on vegetable crops before and after treatments with the biofungicide. It was found that the use of the biological product reduces the development and spreading of the phytopathogen. Its influence is the most effective on tomato and eggplant crops. Also, in the course of research, the possibility of using a spore trap for monitoring Alternaria on vegetable crops has been shown