Symptoms

• The disease can be easily recognized in the field by drooping of the terminal portions, followed by withering and drying up of leaves, eventually resulting in death.
• Discoloration of vascular system of the root is observed.  Partial wilting is also found.  In partially wilted plants growth is arrested. 
• The leaves become pinkish yellow to yellow.  Sterility is often noticed in such plants.  Seeds, if formed are immature and light. 
• Severe infection in the early stage results in total failure of the crop.

Symptom

• It appears as small, white circular patches on young parts of stems and leaves.  These increases in size, often coalesce to cover extensive areas of leaf surface. 
• Affected leaves are reduced in size and distorted.  Premature sterility is also common.  In serve cases, the umbels dry up.
• Sometimes, the seeds are attached.
• Attack of this disease is seen during cloudy weather condition.
• White powdery growth appears on the leaves and buds during its primary stage. Seed formation may not take place in affected plants due to this disease.

Symptom

• Galls appear on the leaves and stems of the plants affected by this disease.
• Shape of coriander seeds change due to effect of the disease.

Management

• To control the disease, sowing may be done only after treating the seeds with 4 g Thiram and 2 g Bavistin / Kg. seeds.
• Spray 0.1% solution of Carbendazim when the symptoms start appearing and repeat the spraying at an interval of 20 days till the disease is completely controlled.