N. E. Agansonova
All-Russian Research Institute of Plant Protection, sh. Podbel’skogo, 3, Pushkin, Sankt-Peterburg, 196608, Russian Federation
Abstract. The aim of the investigation was to determine the biological efficiency of Aleycid, WP biopreparation against wireworms of the genus Agriotes spp. (Coleoptera: Elateridae) and potato scab Streptomyces scabies Waks. & Henr. on potato Solanum tuberosum L. The research was carried out in 2013 and 2017 under conditions of the Northwest region of Russia on the sod-podzolic loamy soil. The application of Aleycid, WP (20 mg/L of water) for the treatment of soil (800 L/ha) and tubers (10 L/t) inhibited the development of potato scab by 97.1–98.9 %; the extension of the disease reduced by 96.3–97.1 %. The application of the preparation against wireworms provided the decrease in tuber injury by 91.0–95.8 %. One important feature of Aleycid, WP is its positive influence on yield quantity and tuber quality. The treatment with actinomycete metabolites increased the yield by 29.8–30.2 %, starch content – by 5.5–5.7 %, vitamin C content – by 9.7–9.9 %; nitrate content decreased by 57.8–58.1 %. The application of Aleycid, WP and the minimum doses of complex nitrogen-phosphorus-potassium (NPK) fertilizers (Aleycid, WP + N30P30K45 and Aleycid, WP + N45P45K60) promoted an increase in the yield of potato tubers by 41.3 and 51.3 %. The maximum yield of tubers – 1566.6–1571.5 g/plant (in the control it was 978.5 g/plant) was obtained against the backgrounds of Aleycid, WP + N60P60K90 and Aleycid, WP + N90P90K120. Application of Aleycid, WP against the background of mineral fertilizers (Aleycid, WP + N60P60K90 and Aleycid, WP + N90P90K120) increased the starch content by 2.50–2.65 %, vitamin C content – by 2.9–3.4 %; nitrate amount reduced by 32.7–40.1 %.
Keywords: potato; Aleycid, WP; wireworms; Agriotes; potato scab; Streptomyces scabies; yield; tubers; starch; vitamin C; nitrates.
Author Details: N. E. Agansonova, Cand. Sc., senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Agansonova N. E. Evaluation of the Efficiency of Aleycid, WP Biopreparation PS against Harmful Organisms on Potato. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 3. Pp. 69-71 (in Russ.). DOI: 10.24411/0235-2451-2018-10313.