Department of Nematology, Orissa University of Agriculture and Technology, Bhubaneswar-751 003, India.
* Part of Ph.D. Thesis of the First Author.
The spiral nematode, Helicotylenchus abunaamai took 6–8 days for its embryonic development at 25 ± 6.5°C. The life cycle from egg to egg was completed in 32–40 days on little millet. Oviposition was observed as a simple and rapid process. The first-stage juvenile was formed inside the egg, 4–5 days after egg-laying. The first moult took place inside the egg and the second stage juvenile hatched at 6–8 days after oviposition. Post-embroyonic development consisted of 3 juvenile stages and the adult with three moults. Feeding on host roots by the juveniles was essential for development to subsequent stages.
Helicotylenchus abunaamai life cycle, oviposition, embryogenesis, hatching, post-embryonic development
