Division of Nematology, Indian Agricultural Research Institute, New Delhi-110 012.
*Present address: National Research Centre for Citrus, Seminary Hills, Nagpur-440 006.
The occurrence of a new strain of Pasteuria penetrans parasitic on Heterodera cajani is reported. Host range studies revealed that out of seven species of phytoparasitic nematodes tested, spore attachment was only observed on the cuticle of second-stage juveniles of H. avenae. while H. sorghi, H. graminis, H. mothi, Rotylenchulus reniformis, Tylenchulus semipenetrans and Pratylenchus thomei were found free of spores. Temperature studies made on spore attachment to second-stage juveniles of H. cajani showed significantly greater number of spores attachment at 25°C than 15 or 35°C.
Bacterial parasite, Pasteurla penetrans, Heterodera cajani, H. avenae, H. sorghi, H. graminis, H. mothi, Meloidogne incognita, Tylenchulus semipenetrans, Rotylenchulus reniformis, Pratylenchus thomei, host range, temperature
