Agricultural crops :: Fruits :: Banana diseases
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| Infection chlorosis mosiac disease: |
Symptom:
- The disease is characterized by the presence of typical mosaic-like or discontinuous linear streaking in bands extending from margin to midrib.
- Rolling of leaf margins, twisting and bunching of leaves at the crown and a rigid erectness in newly emerged leaves
- The presence of dead or drying suckers is noticed in advanced cases referred as heart rot resulting from rotting of heart leaf and central portion of pseudostem
- Primarily infected banana plants develop severe mosaic symptoms in young growth showing broadly streaked chlorotic or yellowish green bands and patches or chlorotic mottling distributed in patches over the leaf lamina
- The leaves are narrower and smaller than normal and the infected plants are dwarf and lag behind in growth. Such plants do not produce bunches but as a virus reservoir
- The primary transmission is through use of infected daughter suckers from diseased palnts and the secondary spread of the disease is through melon aphid, Aphis gossypii and Aphids maidis
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Linear streaking |
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- The banana gardens should be kept free from weeds.
- Infected suckers should not be used for planting.
- Weeds in the nearby areas should be removed as the virus survives in them in off-season.
- Growing pumpkin, cucumber and other cucurbits between the rows of banana crop should be avoided.
- Early detection by regular inspection of planting and eradication of diseased plants from the field as soon as they are noticed.
- Control of insect vector by spraying Phosphomidon at 1 ml per litre or methyl demeton at 2 ml per litre.
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