They Grub feed making irregular tunnels in the corm and rootstock. Tunnels are roughly circular and can reach up to about 8 mm in diameter. The corm can be riddled with tunnels, which promotes fungal infection and decay reducing it to a black mass of rotten tissue. Injury to the corm can interfere with root initiation and sap flow in the plant, as a result the leaves turn yellow, wither and die prematurely.Application of neem powder can control the main banana pests; however, icipe research suggests that other beneficial organisms (entomopathogenic nematodes) can also suppress the pest.