our reporter gerlind vollmer was in ghana, the world's second biggest exporter of cocoa.or our global ideas series, she and her team travelled to bia district, where cocoa farmers have to grapple with a number of problems. reporter: it's with a heavy heart that orlando osmanu is setting to work. he's cutting down cocoa trees in one papart of his plantation. orlando: they have pods that never ripened properly because of the virus. this is no good for harvesting, we can't process it. it's spoiled. reporter: swollen shoot virus is the name of the disease that's affecting his trees. but it's not his only problem. orlando: all this is part of my farm. planted plplantain, cocoa, and other crops here just t like elsewhere on the farm. but the timber c contractors he cleared everything and they didn't even compensate me. reporter: many timber companies in ghana are involved in illegal deforestation. charles brefo-nimo from the ngo snv is workingng with the farms to at least ensure they don't further exacerbate the problem. charles: we are telling farmers to rehabilitate their far