| Abstrak/Abstract |
Potato Cyst Nematodes (PCN), Globodera rostochiensis has noted to be a devastated pest on potato in Indonesia. It is listed as the A2 pest by Plant Quarantine of Republik Indonesia, and it was also being a highly concerned plant parasitic nematode species worlwide. Therefore, both intensive and extensive surveys should be done to monitor the spread of PCN, especially in East Java as one of the centre of potato plantations in Indonesia. The aim of this study was to study the distribution of PCN in four potato plantations in East Java, i.e. Batu, Magetan, Probolinggo, and Pasuruan which were located between 1,205 to 2,063 m above the sea level. Extraction and isolation of cysts from soil samples was done using Baunacke method, and it was followed by identification of the nematodes using morphological and molecular approaches according to Baldwin and Mundo-Ocampo. The results showed that PCN was found on all sampling sites, i.e. Batu (Sumber Brantas, Jurang Kuali, Tunggangan, Junggo, Brakseng); Magetan (Dadi, Sarangan, Singolangu); Probolinggo (Tukul, Pandansari, Ledokombo, Sumberanom, Wonokerto, Ngadas), Pasuruan (Wonokerto, Tosari, Ledoksari, Ngadiwono). Magetan and Pasuruan were noted as new infested areas in East Java. Both morphological and molecular methods showed that the species found on all sites was Globodera rostochiensis. |
