Banana rhizome weevil (Cosmopolites sordidus, Cucurlionidae, Coleoptera)
Damaging stage :- Grub , adult
Damaging Symptoms:-
- Adult on pseudo stem and grab on rhizome .
- Failure of appearance of new
- Sick appearance and yellow line on the top leaves.
Identification :-
- Egg: – Hole in rhizome at ground
- Larva: – Creamy white, leg less, wrinkle and spindle
- Pupa:- Inside either stem or corn .
- Adult:- Black or dark brown ,elytra covers abdomen dorsally .
Life cycle :-
Egg —-7-14 days–> larva –4-6 week–> Pupa —1-2 week–> Adult
Management :-
- Similar to banana pseudo stem