survey on pathogenicity of entomopathogenic nematodes , steinernema sp. and heterorhabgitis bacteriophora infesting larval polyphylla olivieri

بررسی بیماریزایی نماتودهای .Steinernema sp و Heterorhabgitis bacteriophora روی کرم سفید ریشه Polyphylla olivieri

The Effect of Metal Ions on Mortality, Pathogenicity and Reproduction of Entomopathogenic Nematodes Steinernema feltiae Filipjev {Rhabditida, Steinernematidae)

The effect of cadmium, copper, lead, zinc, manganese and magnesium on entomopathogenic nematodes S. feltiae was tested under laboratory conditions. The mortality of nematode invasive larvae, their pathogenicity expressed as test insect G. mellonella mortality and reproduction from the test insect bodies were investigated. It was revealed that cadmium, copper, lead and zinc affected an increase ...

Cryopreservation of Steinernema carpocapsae and Heterorhabditis bacteriophora.

A method for the cryopreservation of third-stage infective juveniles (IJ) of Steinernema carpocapsae and Heterorhabiditis bacteriophora was developed. Cryoprotection was achieved by incubating the nematodes in 22% glycerol (S. carpocapsae) or 14% glycerol (H. bacteriophora) for 24 hours, followed by 70% methanol at 0 C for 10 minutes. The viability of S. carpocapsae frozen in liquid nitrogen as...

Biopesticides from Entomopathogenic Nematodes

Karimipour Fard H. and Saeidi K. 2019. Biopesticides from entomopathogenic nematodes   Plant Pathology Science 8(1): 60-73. DOI: 10.2982/PPS.8.1.60.   In the recant decade, biopesticides with entomopathogenic nematodes (EPNs) have been developed with using different methods and materials. But the production of such biopesticides has always accompanied by some limitations such as low quality o...

Hemocyte Responses of the Colorado Potato Beetle, Leptinotarsa decemlineata, and the Greater Wax Moth, Galleria mellonella, to the Entomopathogenic Nematodes, Steinernema feltiae and Heterorhabditis bacteriophora

Hemocyte encapsulation reactions of infective juveniles of two Iranian isolates of the entomopathogenic nematodes, Heterorhabditis bacteriophora Poinar (Rhabditina: Heterorhabditidae) and Steinernema feltiae Filipjev (Tylenchina: Steinernematidae), were compared in the economic pest Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), and the greater wax moth, Gall...

Interference competition in entomopathogenic nematodes: male Steinernema kill members of their own and other species.

There is evidence of competition within and between helminth species, but the mechanisms involved are not well described. In interference competition, organisms prevent each other from using the contested resource through direct negative interactions, either chemical or physical. Steinernema spp. are entomopathogenic nematodes; they enter a living insect host which they kill and consume with th...