If your African Violet has this symptom, there is a strong possibility that it has Root Nematodes. Other Symptoms Leaves pale . They appear yellow or grayish in color. Leaves wilt . They may appear translucent brown with a soft, jelly-like consistency.
Plant growth is slow .
Treatment Unfortunately, the only effective treatment for Leaf Nematodes requires the use of Metasystox or Vydate , neither of which is available without a pesticide license. Unless you have one of these, your only remedy is to dispose of the affected plants. If the Nematodes are not too far advanced, you may be able to remove all the leaves and repot the crown. If you try this, however, be sure to isolate it in case the crown is infested. Prevention Always isolate new plants until you can positively determine that they are not infested.