Record of pineapple marbling disease in siang regions of Arunachal Pradesh

Abstract

The pineapple (Ananas comosus) is one of the most important fruit crop of NEH Region of India. Marbling disease is caused by the acetic acid bacteria Acetobacter peroxydans Visser't Hooft and Erwinia herbicola var. ananas (Serrano) Dye. However, sporadically levels occur only in the lowland tropics and epidemic also occurring of the hot and humid. Infection by marbling bacteria occurs through the open flower. The pineapple fruit purchased from local market of Siang regions of Arunachal Pradesh. Marbling of pineapple is an asymptomatic disease in the field and is evidenced with a brownish coloration when the infected fruit is use to eat and processed. Although, maximum disease incidence (32.4%) recorded from East Siang in the month of August, the purpose of this record of marbling disease is aware to pineapple growers because there is no cost effective disease management method to cultivation of pineapple in Siang regions.