Verticillium wilt
Verticillium wilt (Verticillium albo-atrum or Verticillium dahliae) :
Yellow spots appear on lower leaves, followed by brown veins. Leaves then turn brown and fall off. Infection pattern often resembles a V-shape. Symptoms progress up the stem.
Control: There is no chemical cure for it. To slow the disease, use fertilizers lower in nitrogen and higher in potassium.Destroy infected plants.
