Epidemi Penyakit Tumor pada Sengon (Paraserianthes falcataria) di Jawa Timur, Indonesia
Abstract: In the early of 2005
at one of the coffee and cocoa estates in the district of Banyuwangi, East
Java, an epidemic outbreak of gall disease on albizia (Paraserianthes
falcataria) with heavy infestation level occurred. Arthropod pest initially was
suspected as the causing agent of the gall. However, intensive observations in
the field and laboratory revealed that the gall was caused by the rust fungus
of Uromycladium tepperianum. It was a new outbreak of the disease reported in
Indonesia.
Observation at one division of the estate showed that the extent of
albizia trees infected by the pathogen reached to more than 50%. There was an
indication that environmental factors especially rainfall and humidity strongly
increased the disease intensity and sporulation of the fungus. Results on the
fungicide trial conducted in the field indicated that spraying of the mixed
solution of Carbendazim (Delsene MX 80 WP) and Flusilazol (Nustar 400 EC) at the
concentration of 1 g and 0.3 ml formulation per liter of water respectively was
very effective in suppressing the infestation. These mixed fungicides could
suppress the disease infestation to 60.1% compared with untreated trees.
Keywords: Albizia (Paraserianthes
falcataria), gall disease, Uromycladium tepperianum, disease control
Penulis: Soekadar Wiryadiputra
Kode Jurnal: jpkehutanandd070005
