(by. Dr. Dyah Manohara)
Bacterial wilt caused by Ralstonia solanacearum is still a problem in ginger cultivation in Indonesia. But lately, leaf spot symptoms have been reported to be an important issue in some ginger production centers in West Java, Central Java and Bengkulu. There are four types of fungi are widely reported to cause damage to the leaves of the ginger plant in Indonesia, namely Phyllosticta, Pyricularia, Cercospora and Phakopsora.
