questions: asking about the rhizome weevil in ginger. 
 answers: suggested to treat the seed materials with quinalphos 0.75%(for 20-30 min)before sowing in case the infestation persists.apply well rotten sheep manure @ 10 t/ha in two splits or poultry manure in 2 splits followed by drenching dimethoate 30 ec @ 2ml or phosalone 35 @ ec @ 2ml/lt of water.