Banana aphid: Pentalonia nigronervosa f. typica
Symptoms of damage:
- Leaves are bunched into a rosette appearance, stunted growth and leaf margins are wavy with upward rolling
- Do not produce bunches
- Vector of bunchy top disease
- Seen in colonies on leaf axils and pseudostem
Identification of pest:
- Nymphs: Are dark in colour
- Adult: Brownish and has black-veined wings
Management:
- Ensure clean cultivation
- Use healthy and pest free suckers to check the pest incidence
- Destroy diseased plants with rhizome
- Spray methyl demeton 25 EC 0.05%
- Encourage activity of predators like Scymnus, Chilomenes sexmaculatus, Chrysoperla carnea and other coccinellids
- Use Beauveria bassiana
Source-
- TamilNadu Agritech Portal.
