• Grubs bore into the rhizome and cause death of the plant
• Presence of dark coloured tunnels in the rhizomes.
• Death of unopened pipe, withering of outer leaves.

• Eggs:laid singly, white in colour present on the upper part of rhizome
• Grub: Apodous, yellowish white with red head
• Pupa: white in colour, occur in inside the corm and tunneling
• Adult: Dark weevil, newly emerged weevil is red brown

• Select healthy sucker and plant
• Do not take regular crop in the same field to avoid initial infestation
• Ensure clean cultivation
• Removal of pseudo stems below ground level
• Trimming the rhizome
• Avoid growing Robusta, Karpooruvally, Malbhog, Champa and Adukkar
• Grow less susceptible varieties like Poovan, Kadali, Kunnan, Poomkalli
• Use cosmolure trap at 5/ha

Banana corm split trap

• Trap adult weevils with pseudostem chopped into small pieces
• kept near infested clump at 65/ha.
• Soil incorporation at the time of planting: carbofuran 3 G 10g, phorate 10 G 5 g/plant.
• Before planting, the suckers should be dipped in 0.1 per cent quinalphos emulsion.
• Apply castor cake 250g or carbaryl 50g dust or phorate 10g per pit before planting also prevents infestation
• Severe attack dimethoate, methyl demeton may be sprayed around the collar region.