Abstract

• In Myanmar, rice is the national food crop. Rice production needed for local consumption as well as for export. Root-rot disease occurred in some rice growing areas of the country; however, information about the disease was very limited. Therefore, the present study was conducted two rice farms (Hmawbe- 3) according to different situation. One was sandy and flooding area (Site- I) and another one was muddy and non-flooding area (Site-2) from the Kyaing Phaung Village during the rainy season of 2018. The soil and roots samples were randomly collected (one center and four corners) from both farms fortnightly. The collected samples were taken to the laboratory of Zoology Department, Kyaing Tong University. The nematodes extraction was done from soil and roots separately by Whitehead Tray method. The extracted nematodes were examined using the stereo and compound microscopes and indentified down to genus level. Total seven genera of plant- parasite nematodes were recorded from both study sites. Among them the number of Hirschmenniella oryzae (root-rot nematode) were highest during July and gradually reduced on September however Meloidogynes spp. (root-knot nematode) were sudden rise until the harvesting time in both study sites. Therefore, it may be assumed that the root damage nematodes were distributed around the rice field of Kyaing Phaung village. The present findings would be helpful towards the management of agriculture including the rice and other crops at the East Shan State.