BETELVINE :: MAJOR PEST :: APHID

1. Aphid : Aphis gossypii (Aphididae: Hemiptera)
Damage symptoms :  Both nymph and adults desap the tender shoot and leaves causing yellowing, curling and crinkling in leaves of support plants viz.,Sesbania spp. Honey dew secreted by the aphids fall on the betelvine leaves and lead to the development of sooty mould which appear as black spots.
Bionomics : Two forms of females are available in an aphid colony. The alate (winged) and apterous (wingless) forms which can reproduce parthenogenetically and viviparously, giving birth to 10 -20 nymphs per day. The nymph becomes adults in another week time.
Management

1. Clip off excess infested Sesbnia leaves
2. Spray chlorpyriphos 2 ml/L on agathi leaves