Diseases and pests of the winged bean (Psophocarpus tetragonolobus [L.] DC.) in Sri Lanka

Abstract

Several viral, bacterial, fungal and nematode diseases and a disease of viral and/or aphid origin were recorded in surveys of winged bean in Sri Lanka. Three fungal diseases, pulvinus rot (Fusarium pallidoroseum) pod rot (Botryodiploidea theobromae) and leaf scorch (Phoma sorgina) have not been recorded elsewhere. Among the insects and pests recorded; Myllocerus curvicornis, Myllocerus undatus, Hypolixus truncatulus, Luperomorpha discoidea, Pagria signata, Parasa lepida, Syntomis passalis, Euproctis scintillans, Dysdercus olivaceus, Riptortus pedestris and species of Helopeltis, Leptocentrus, Zoriada, Laius, Euops, Brachyplatys and Cletus are new records.

Keywords:

• Psophocarpus tetragonolobus
• winged bean
• viral disease
• fungal disease
• pests