• To control weevil stem injection of Chloropyripos @ 5 ml or diamethoiate @ 5 ml per litre of water at 6-7 months after planting. • Or spraying of Chloropyripos @ 2.5 ml in one litre of water. • Rhizome treatment with Carbendazim about 4 minutes. • Soil drenching of Carbendazim @ 10 ml solution twice in a month.