Oenanthe javanica Oenanthe javanica Oenanthe javanica, commonly Java waterdropwort, Chinese celery, Indian pennywort, Japanese parsley, water celery and water dropwort, is a plant of the water dropwort genus originating from East Asia. (Chinese celery is also the name given to "Apium graveolens" var. "secalinum"). It has a widespread native distribution in temperate Asia and tropical Asia, and is also native to Queensland, Australia. This plant should not be confused with the plants of the genus "Cryptotaenia", sometimes called "Japanese wild parsley" ("mitsuba" in Japanese). "O. javanica" is a perennial herb that grows to about 1 m in height, with fibrous roots that
Celery mosaic virus can pick up the virus on its stylet (its mouthparts) and transfer it quickly to the next plant it probes. The virus can also be transmitted mechanically by tools and machinery. At least 26 different aphid species are known to transmit the virus. There is no evidence of seed transmission. Because chemicals are not effective in treating plant viruses, management of celery mosaic virus focuses on reducing aphid population within colonies of plants. Recommendations for management of celery mosaic virus include planting resistant cultivars, spreading out crops, clearing weeds from crop fields, and treating crops with pesticides.Because celery mosaic virus