Brinjal Diseases
Tobacco Mosaic Virus
Symptoms
- Mosaic mottling of leaves and stunting of plants are the characteristic symptoms of potato virus Y Mosaic symptoms are mild in early stages but later become severe.
- Infected leaves are deformed, small and leathery. Very few fruits are produced on infected plants.
- The important symptom produced by tobacco mosaic virus is conspicuous mottling of leaves.
- Leaves also develop blisters in advanced cases. Severely infected leaves become small and misshapen. Plants infected early remain stunted.
- PVY is easily sap transmitted.
- It is transmitted in the field through aphids, Aphis gossypii and Myzus persicae and perpetuates on weed hosts like Solanum nigrum and S.xanthocarpum.
- TMV is transmitted by sap, contaminated implements and clothes, soil debris and hands of labour.
- It can perpetuate on many cultivated plants like cucurbits, legumes, pepper, tobacco, tomato and weed hosts. The virus survives in plant debris in soil.
Management
- Destroy all weeds and avoid planting cucumber, pepper, tobacco, tomato near brinjal seed beds and field.
- Wash hands with soap and water before working in seed beds.
- Prohibit smoking or chewing of tobacco who are handling brinjal seedlings.
- Spray insecticides to control the insect vectors.
|
Insecticide |
Dosage |
|---|---|
|
2ml/lit |
