A Report on the Association of Dorylaimid and Tylenchid Nematodes with Guava and Litchi Plantations in South 24-Parganas District, West Bengal, India Sen Debabrata Zoological Survey of India, M – Block, New Alipore, Kolkata-700 053 Email: dsen_nema@rediffmail.com
Abstract Periodical and random surveys were made during 2004 – 2007 in most of the guava and litchi orchards in different subdivisions of south 24-Parganas district, West Bengal, to observe and to explore the occurrence and association of the nematodes belonging to the orders Dorylaimida Pearse, 1936 and Tylenchida Thorne, 1949. The south 24-Parganas district consists of twenty-nine blocks under five subdivisions. Guava (Psidium guajava L.) and litchi (Litchi chinensis Sonn.) are the most economically important fruit crops in this district and are grown extensively in numerous orchards with considerable high production in West Bengal. In the present study, total 31 species of Dorylaimida under 19 genera, 14 subfamilies, 10 families, 5 superfamilies and 2 suborders have been observed. Out of these, one genus and 11 species were found to be new to science. Again, 2 species from India, 9 species from West Bengal and8 speciesfromsouth24-Parganasdistricthave been recorded for the first time. 16 species under 9 genera, 4 subfamilies, 4 families and 2 superfamilies under the suborder Tylenchina of the order Tylenchida were met with. Among these, one genus and 3 species have been proposed as new. 5 species from West Bengal and another 5 species from south 24-Parganas are reported for the first time. Distribution lists of the available nemic fauna have been provided. Top Keywords Association, distribution, Dorylaimida, Tylenchida, guava, litchi south 24-Parganas. Top |