hii Link haipo kwenye lugha yako, kuangalia kwa: English (en),
au tumia ufasiri wa google:  

plantix.net/en/library/plant-...and-black-sigatoka

The symptoms of Yellow and  Black Sigatoka are caused by the fungi Mycosphaerrala sp. and occur throughout the world.  It is one of the most destructive diseases of banana.

-- Plantix.net