NEW FUNGAL POTATO PATHOGENS: RESISTANCE TO FUNGICIDES

New pathogenic to potato fungal strains were found on potato tubers grown in the Kostroma and Moscow regions in 2018. These strains were isolated into axenic cultures and analyzed by cultural, morphological and molecular methods. They were identified as Ilyonectria crassa and Septotinia populiperda . The pathogenicity of these species has been proven by the Koch triad. The slices of potato tubers were inoculated with macroconidia of I. crassa and mycelium of S. populiperda . Mycelium from the slices were isolated into axenic culture. These fungal strains were completely identical to the parent strains. Previously, these species of fungi were not reported as potato pathogens. Resistance of I. crassa and S. populiperda to fungicides fludioxonil (preparation Maxim), azoxystrobin (Quadris), colloidal silver (Zeroxxe) and difenoconazole (Score) were tested. I. crassa was sensitive to Maxim and Quadris; S.populiperda to Maxim and Zeroxxe.

Авторы
Сборник материалов конференции
Издательство
Российский университет дружбы народов (РУДН)
Язык
Английский
Страницы
86-89
Статус
Опубликовано
Год
2019
Организации
  • 1 Peoples' Friendship University of Russia
  • 2 Lomonosov Moscow State University
Ключевые слова
Ilyonectria crassa; Septotinia populiperda; potato tuber diseases; fungal potato patho- gens; silver nanoparticles; fludioxonil; azoxystrobin; difenoconazole
Дата создания
20.02.2020
Дата изменения
20.02.2020
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/58868/