Symptoms
- Characteristic symptoms are development of typical chlorotic spots on the leaves, as the disease advances, severe necrosis of the leaves is noticed.
- Gradually, the extent of chlorotic areas increases.
- Veins and vein lets also show necrotic symptoms. Necrotic symptoms are also noticed in stem, growing point, buds, pods etc.
Epidemiology
The virus belongs to the genus Tospovirus of the family Bunyaviridae which includes several viruses that are a serious threat to peanut, tobacco, vegetables, ornamentals and other commercially important crops. They are exclusively vectored by several species of thrips in a circulative and propagative manner. This virus is also transmitted by mechanical means.
Procedure for Observation
Select 25 plants at random and observe for mosaic symptoms