Lateral Movement of the Entomopathogenic Nematode, Steinernema arenaria (Artyukhovsky, 1967) (Rhabditida: Steinernematidae) in Sand at Different Temperatures

Csontos, A. S. and Nádasy, M. (2002) Lateral Movement of the Entomopathogenic Nematode, Steinernema arenaria (Artyukhovsky, 1967) (Rhabditida: Steinernematidae) in Sand at Different Temperatures. Acta Phytopathologica et Entomologica Hungarica, 37 (1-3). pp. 299-305. ISSN 0238-1249

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Abstract

The lateral movement of the entomopathogenic nematode, Steinernema arenaria (Artyukhovsky et al., 1997) (Rhabditida: Steinernematidae) in sand was determined at 15, 20, 25 and 30 °C. The infective juveniles moved farther and quicker for the same time period as the temperature increased from 15 to 30 °C, but interestingly enough more infective juveniles moved the opposite way than toward its host. At 15, 20, 25 and 30 °C, an average of 0.2, 2.8, 18, and 21.8% of the infective juveniles moved toward the larvae, while 0.8, 17.3, 39.3 and 55.6% moved in the opposite direction. The movement of the infective juveniles at all temperatures was significantly different from each treatment at P < 0.001. The extraction efficiency decreased at all temperatures as time went by.

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