Insidensi dan Keparahan Penyakit Bercak Daun pada Tanaman Pisang (Musa spp.) di Kebun Percobaan IPB Sukamantri, Bogor, Jawa Barat

Abstract

Banana (Musa spp.) is one of the horticultural commodities that consumed by many people in Indonesia. Pests and diseases affects the quality of banana production. This study aims to identify the cause of leaf spot disease in banana plants and determine the incidence and severity of the disease. This research was conducted at the IPB experimental field station, in Sukamantri Village, Tamansari District, Bogor Regency, West Java. Observations of disease progression were conducted from September to October 2022 for five consecutive weeks. Identification of the cause of the disease is done by taking samples of symptomatic banana leaves, then further identified in the laboratory. Disease incidence and severity data were tabulated using Microsoft Office Excel 2013 and analyzed descriptively. Two types of leaf spot disease were identified, i.e. cordana and sigatoka leaf spot. Cordana leaf spot only infects Raja Bulu variety while sigatoka leaf spot infects Raja Bulu, Mas Kirana, and Ambon Kuning varieties. The incidence of cordana leaf spot disease caused by Cordana musae reaches 100% with an average disease severity of 30.66-67.70%. The incidence of sigatoka leaf spot caused by Mycosphaerella musicola in Raja Bulu variety was 62.96-66.67%, while in Mas Kirana and Ambon Kuning varieties reached 100% with the average severity of disease in Raja Bulu variety ranging from 9.62-17.33%, in Mas Kirana variety 31.38-62.00%, and in Ambon variety 33.17-67.05%.