Bagrov R.A., Deniskina N.F., Kostenko G.A.
The results of assessment of linear and hybrid material of white cabbage for resistance to diamondback moth (Plutella xylostella (L.)) and hybrids of napa cabbage for resistance to diamondback moth and cabbage moth (Mamestra brassicae L.) are presented. The purpose of the research: to select breeding samples of white cabbage resistant to leaf-eating phytophagous insect for further breeding work and hybrids of napa cabbage for safe commercial products growing. Research tasks: to assess the damage rate of cabbage lines and hybrids by diamondback moth caterpillars, to assess the damage rate of napa cabbage hybrids by diamondback moth and cabbage moth caterpillars. To assess indicators of the state of natural and laboratory pest populations, we used population characteristics: number, fecundity, development duration, and mortality at different stages of development. When working with white cabbage and napa cabbage, standard methods were used. Damage to cabbage plants was assessed visually by characteristic damage at the stage of rosette and the stage of loose cabbage head using a six-point VIZR scale. According to the results of the assessment of white cabbage for further breeding work, lines without damage were selected: in the early-maturing group: Su-200m, 3002 a1, Nozom b, Exp2, in the middle-late group 347 and 52, in the late-maturing group Su-1g54, 5-41, L 11-13, 613. According to the results of damage assessment of white cabbage in 2019, against a harsh background of colonization due to favorable weather conditions for diamondback moth, two hybrids (504, 505) were found to be severely damaged by these insect. Six hybrids (511, 522, 524, 516, 526, 537) they had a damage score of 1 or less. A comprehensive entomological assessment of napa cabbage hybrids using various methods has revealed as resistant a F1 Hydra hybrid that can be recommended for reducing the pesticide press on agrocenosis and obtaining environmentally safe products.
Key words: white cabbage, napa cabbage, diamondback moth, cabbage moth, resistance
Bagrov R.A. (corresponding author), Cand. Sci. (Agr.), senior research fellow, laboratory of breeding and seed growing of solanaceous crops, All-Russian Research Institute of Vegetable Growing – the branch of All-Russian Centre of Vegetables (ARRIVG– a branch of FSBSI FSVC). E-mail: firstname.lastname@example.org
Deniskina N.F., Cand. Sci. (Biol.), associate professor, department of plant protection, RSAU – MAA after K.A. Timiryazev. E-mail: email@example.com
Kostenko G.A., Cand. Sci. (Agr.), leading research fellow, laboratory of breeding of cabbage crops, ARRIVG– a branch of FSBSI FSVC, breeder of Poisk Agro Holding. E-mail: firstname.lastname@example.org
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For citing: Bagrov R.A., Deniskina N.F., Kostenko G.A. Results of assessment of white cabbage and napa cabbage for resistance to diamondback moth and cabbage moth. Potato and vegetables. 2020. No7. Pp. 37-40. https://doi.org/10.25630/PAV.2020.22.26.006 (In Russ.).