Redescription of Steinernema scapterisci Nguyen and Smart, 1990: (Steinernematidae)

Life Cycle of Steinernema scapterisci Nguyen &Smart, 1990.

The life cycle of Steinernema scapterisci Nguyen and Smart, 1990 consists of an egg stage, four juvenile stages, and an adult stage (male and female). The cycle from IJ (third stage infective juveniles) to IJ may proceed by one of two routes. If the nutrient supply is sufficient and the population is not overcrowded, the IJ develop to adult males and females of the first generation. Most eggs f...

Pathogenicity of Steinernema scapterisci to Selected Invertebrates.

Steinernema scapterisci was more pathogenic to insects tested in the order Orthoptera than to those in the orders Lepidoptera or Hymenoptera; it was not pathogenic to earthworms. The nematode also infected and killed the mole crickets Scapteriscus acletus and S. vicinus when released four successive times at 10-day intervals in containers of soil infested with the nematode.

Control of Pest Mole Crickets (orthoptera: Gryllotalpidae) in Bahiagrass Pastures with the Nematode Steinernema Scapterisci (rhabditida: Steinernematidae)

Steinernema akhursti sp. n. (Nematoda: Steinernematidae) from Yunnan, China.

A new species of entomopathogenic nematode, herein described as Steinernema akhursti sp. n., was recovered from soil samples collected from Yunnan Province, the People's Republic of China. Both morphological and molecular data show congruently that S. akhursti sp. n. belongs to the Steinernema feltiae group. It can be separated from all described Steinernema species by the combined morphologica...

Mode of Entry and Sites of Development of Steinernema scapterisci in Mole Crickets.

Infective juvenile steinernematid nematodes have been reported to enter their insect hosts through the mouth, anus, and spiracles (1-3,5-8). Information is lacking, however, for Steinernema scapterisci Nguyen & Smart, 1990 (4), a promising biological control agent of mole crickets in the genus Scapteriscus. This paper reports on the mode of entry of S. scapterisci into mole crickets and the pri...