Steinernema spp-

Entomopathogenic nematodes kill their insect hosts within 24 hours by Ganpati Jagdale

Entomopathogenic Nematode Virulence- Nematode information It is well known fact that the infective juveniles of both Steinernema spp. and Heterorhabditis spp. enter their insect host through natural openings such as mouth, anus and spiracles and eventually reach in the insect body cavity.  As insects do not have a closed circulatory system like animals, their body cavity acts as an open circulatory system, which is filled with the blood that is technically called as hemolymph.

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How entomopathogenic nematodes enter into host body- Nematode information? by Ganpati Jagdale

Entomopathogenic nematodes- Mode of Infection In the soil environment, infective juveniles of entomopathogenic nematodes (Figure 1.) are always searching for the insect hosts to infect, kill, feed and reproduce.  Once the infective juveniles of both Steinernematid (Steinernema spp.) and Heterorhabditid (Heterorhabditis spp.) nematodes locate any larval, pupal or adult stages of their insect host, they will rush to find any easy entry routes/points to enter into the insect host body. 

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Why some insect-parasitic nematodes are called entomopathogenic nematodes? by Ganpati Jagdale

Entomopathogenic Nematodes- Nematode Information Insect-parasitic nematodes that belong to both Steinernematidae and Heterorhabditidae families are also called as entomopathogenic nematodes because they cause disease to their insect hosts with the help of mutualistically associated symbiotic bacterial pathogens.

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