1. Leafhopper

1. Leafhopper - Erythroneura sp (Cicadellidae: Hemiptera)

    Damage
    • Both nymphs and adults suck the sap resulting in tiny white spots on the foliage.
    • In case of severe infestation, leaves turn yellow, brown and in severe case fall from the vines.
    Bionomics
    • The leafhopper deposited the eggs on the leaf tissues.
    • The eggs are hatched in 14 days. The nymphs are pale in colour and wingless.
    • It feeds on the lower surface of leaves and become adults after molting five times.
    • The nymphal period is 3-5 weeks. This pest completes 2-3 generations in the season.

Last modified: Tuesday, 7 February 2012, 10:33 PM