INVESTIGATION OF PARASITIC NEMATODESON LYCHEE IN GUANGDONG PROVINCE

Investigations of parasitic nematodes on Lvchee were carried out inGuangdong province from 1991 to 1993. 29 species of nematodes which belong to 17genera, 14 families and 2 orders were identified from 42 root samples and soil sam-ples around roots of Lychee plants in 10 cities (counties). These species were existedas follows: Tylenchus buttenk; T. cylindricollis; T. exiguus T. fasiformis; T.parvissimus; Clavilenchus similis; Tylenchorhynchus claytoni; T. nudus; Pratvlenchuscoffeae; P. brachyurus; Helicotylenchus californicus; H. cornarus; H. digonicus; H.dihysters; H. exallus; Aorolaimus belicus;Scutylenchus quadrifer; Meloidogyne sp;Rotylenchulus reniformis; Macroposthonia xenoplax; Discocriconemella limitanea;Tylenchulus semipenetrans; Paratylenchus elachistus; Aphelenchus avenae; A.meximus; A. Sparsus; Aphelenchoides bicaudatus; Xiphinema americanum;Trichodorus monohystera; T.nanus; Lelenchus sp.. The former 23 speices are new re-cords on Lychee.