ABSTRACT
Distribution Ditylenchus angustus originated as an important pest of deepwater rice in south and southeast Asia and, therefore, has a restricted distribution due to deepwater rice being found in only a few areas. It is a parasite of both wild and cultivated species of Oryza in the major river deltas of Bangladesh, Assam, Burma, and Vietnam that are prone to deep or very deep flooding in the rainy season. However, it is now widespread in Bangladesh on lowland rice systems, and may spread into the lowland crop in other countries.
