More Photos
African Rhino Horn & the Banana Corm Weevil
This is what weevil damage looks like.
What banana cultivars are they attacking?
I only have a problem with my Cuerno de Alce, my Maricongo, Manzano, Morado, and Cavendish have never had weevils.
What to do depends on what you prefer, GrubEx is commonly used here.
Scotts GrubEx1 Season-Long Grub Killer
I prefer to keep the area clean and encourage ants to move it, but not the big black ants. They'll drill more holes in the pseudostem than the weevils.
Damaged caused by large Black Ants.
The RD may permit the use of Carbendazim, but it was banned in the US for health concerns and countries that do allow it's use can still export bananas to the US.
Using Pseudostem injector for effective control of Fusarium wilt, Erwinia rot and Weevil attacks. ~ Tissue Culture Banana
Check with the local farmers and see what they use.