Verticillium wilt
causes the xylem vessels to get blocked, which in turn causes the plant to wilt. Spores may be wind-dispersed to new hosts. In the senescent tissue, the [...] wilting of plants. The wilting starts at the lower leaves. These leaves are pale-green, then orange-yellow. In the beginning the plant seems to recover at [...] of the plant and produces spores that are transported upwards with the transpiration stream. As a defence mechanism, the plant produces gum in the vessels