Nematodes of the cocoa region of Bahia, Brasil, 1: Plant parasitic and free-living nematodes associated with rubber (Hevea brasiliensis Muell. Arg.)

A taxonomic survey of nematodes associated with Hevea brasiliensis (Muell. Arg. in Bahia, Brazil, was conducted from May, 1971 till May, 1972. Dolichodorus sp., Huntaphelenchoides sp., Meloidogyne sp., Pratylenchus brachyurus, Rotylenchulus reniformis, Psilenchus cf. hilarulus, Paratrichodorus minor, Tylenchus sp., Xiphinema ifacolum, X. vulgare, X. denoudeni were isolated from nursery plants and Aphelenchoides sp., Basiria sp., Discocriconemella limitanea, Dolichodorus sp., Helicotylenchus pseudorobustus, Huntaphelenchoides sp., Macroposthonia onoensis, M. coomansi, Paratylenchus sp., Trichodorus cf. monohystera, Tylenchus sp., and Xiphinema sp., from mature trees. Besides the plant-parasitic nematodes mentioned above, a total of 36 genera and 54 species of free-living nematodes of which 19 genera and 25 species were from the nursery plants and 28 genera and 40 species from mature trees are recorded for the first time