Церкоспороз

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Автор: Виктор Сусидко | Категория: Болезни винограда
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Этот грибок поражает не только листья, но и ягоды. Сначала нижняя сторона листьев покрывается налётом оливкового цвета. Поражённые участки вскоре сливаются в крупные пятна, которые приобретают бурую окраску. После этого листья быстро засыхают и опадают. Заражение листьев начинается обычно в августе, а к середине сентябре почти половина их засыхает. Поражение ягод начинается с плодоножек – на них образуется оливковый налёт, который впоследствии преобразуется в зелёный бархатный покров. Когда болезнь переходит на ягоды, у плодоножек появляется затвердевший низ с синеватым оттенком – при малейшем прикосновении ягоды осыпаются. Грибница церкоспороза распространяется между клетками тканей ягод и листьев. Меры борьбы Уничтожение опавших листьев, тщательный уход за кустами и почвой. Грамотное проведение процедур борьбы с милдью прекращает также и развитие церкоспороза. We know how is so you face. Because of your needs. Thus, if it's the lack of experience in his profile and the best! 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