Цветочная плесень клевера

Цвето́чная пле́сень кле́вера — болезнь клевера, вызываемая грибком ботритис цветолюбивый (Botrytis anthophyla). Поражает как дикие виды, так и культурные сорта, наносит урон семеноводству.

Развитие болезни

Заражение спорами (конидиями) гриба осуществляется ветром или насекомыми при опылении, мицелий способен прорастать в стебли растения и проникать в здоровые цветки.

Внешне растения остаются здоровыми, болезнь можно обнаружить только изучив с помощью лупы вскрытые цветки: тычинки их отмирают, перестают производить пыльцу и покрываются налётом из конидий гриба. Затем мицелий проникает в завязь и семена, которые становятся щуплыми и частично погибают. В выживших заражённых семенах гриб зимует в виде мицелия, и такие семена дают больные растения, в которых вместо пыльников развиваются спороношения гриба.

Меры борьбы

Примечания

Литература

  • Горленко М. В. Род Ботритис (Botrytis) // Мир растений / Гл. ред. А. Л. Тахтаджян. — М.: Просвещение, 1991. — Т. 2. Грибы. Под ред. М. В. Горленко. — С. 379—380. — ISBN 5-09-002841-9.

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