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Description of paratylenchus manilkarii n. sp., P. sindhicus n. sp., and observation of pratylenchus kralli ryss, 1982 from chikoo (Manilkara zapota L. Van royen) orchards of Balochistan and Sindh, Pakistan.

Erum Iqbal ; Nasir Mehmood ; Nasira Kazi ; Shahina Fayyaz

Pakistan Journal of Zoology 2020 Vol 52 No. 2 pp. 693-698;


During the surveys of chikoo (Manilkara zapota L. van Royen)plantation at Hub, Balochistan and Gadab, Sindh a number of plant and soil nematodes were encountered. Soil sample analysis revealed two and a known plant parasitic nematode species viz., Paratylenchus manilkarii n. sp., P. sindhicus n. sp., and Pratylenchus kralli Ryss, 1982 as a new record species. P. manilkarii n. sp., is characterized by the lateral field with four incisures; stylet 28-29 µm long; vulval lips protruding with vulval flap; lip region rounded or truncated without submedian lobes, tail ventrally curved with pointed or acute terminus. P. sindhicus n. sp., is characterized by stylet 20-21µm long; vulval lips not protruding with advulval flap; female head with small submedian lobes; tail ventrally curved with finely to broadly rounded terminus. Detailed taxonomical studies of new species have been incorporated herein with measurements, descriptions, illustrations and microphotographs along with brief description, measurements and microphotographs of the new record species.