Open AccessBiological and economic evaluation of AMISTAR Gold fungicide against sunflower rust in the Lower Volga region
Author(s) -
D I Parpura,
Anton I. Sidortsov,
Gaik P. Atmachyan
Publication year - 2021
Publication title -
vestnik rossijskogo universiteta družby narodov. seriâ agronomiâ i životnovodstvo
Language(s) - English
Resource type - Journals
eISSN - 2312-7988
pISSN - 2312-797X
DOI - 10.22363/2312-797x-2021-16-4-353-361
Subject(s) - sunflower , fungicide , azoxystrobin , rust (programming language) , biology , agronomy , yield (engineering) , triadimefon , root rot , horticulture , physics , computer science , programming language , thermodynamics
Rust is one of the most economically important foliar diseases of sunflower. The problem of sunflower disease control was considered. The article presents the results of a two-year experiment studying the efficiency of AMISTAR Gold fungicide, concentrated suspension (active ingredient: Azoxystrobin 125 g/L, Difenoconazole 125 g/L) in sunflower hybrids in the Lower Volga region. Flowerbud development stage was the best application timing for increasing productivity. Therefore, sunflower yield averaged 34 c/ha. The biological efficiency of the fungicide ranged from 85 to 90 %. The calculation of economic efficiency showed 145255 % profitability depending on the year.