Division of Nematology, Indian Agricultural Research Institute, New Delhi-110012 (India).
1 Part of Ph.D. thesis submitted by the senior authors to Agra University, Agra in 1975.
On maize Cv. Ganga-5, the three nematode species, Tylenchorhynchus vulgaris, Pratylenchus thomei and Hoplolaimus indicus completed their life-cycles (egg to egg) in 15–18, 25–29 and 39–43 days respectively under laboratory conditions (30±2°C) when inoculated individually. In all cases there were 4 moults, the first being inside the egg. In combined inoculations, the life-cycle of T. vulgaris was shortened by 2–3 days (13–15 days). However, no such differences were observed in the case of P. thornei and H. indicus.
