Emilya Green
Well-Known Member
I suggest that you cut that problematic branch off immediately and then treat your soil. I suspect that it is verticillium wilt.
From the web: Verticillium wilt is caused by a soil fungus called Verticillium dahliae. ... The fungus spreads into the branches through the plant's vascular system and simultaneously causes the plant cells to “plug” themselves. Once the xylem is infected, it becomes so plugged that water can no longer reach the leaves.
From the web: Verticillium wilt is caused by a soil fungus called Verticillium dahliae. ... The fungus spreads into the branches through the plant's vascular system and simultaneously causes the plant cells to “plug” themselves. Once the xylem is infected, it becomes so plugged that water can no longer reach the leaves.