Verticillium wilt
Life cycle and appearance of Verticillium wilt Verticillium dahliae survives for prolonged time periods (many years) in the soil as microsclerotia, small hard [...] fungus infects the roots of plants, directly or through wounds caused by for example nematodes. The fungus then grows into the vessels of the plant and [...] and produces spores that are transported upwards with the transpiration stream. As a defence mechanism, the plant produces gum in the vessels. The presence