期刊
JOURNAL OF INVERTEBRATE PATHOLOGY
卷 83, 期 2, 页码 139-148出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0022-2011(03)00056-9
关键词
Steinernematidae; Scarabacidae; host range; temperature effects; foraging behavior; biological control
类别
This study describes the basic ecological characteristics of the entomopathogenic nematode Steinernema scarabaei (Rhabditida: Steinernematidae) that was originally isolated from epizootics in scarab populations in New Jersey turfgrass areas. Under laboratory conditions, S. scarabaei infected a limited range of insect species and appeared best adapted to scarab larvae as hosts. It uses a widely ranging foraging strategy with a low attachment rate to mobile hosts on the soil surface but with excellent infection of sedentary host placed at greater than or equal to 2 cm soil depth. It has a wide thermal activity range with optimum infectivity from 17.5 to 25 degreesC. Because of its foraging strategy and adaptation to scarab larvae as hosts, S. scarabaei has outstanding potential for the control of scarab pests. (C) 2003 Elsevier Science (USA). All rights reserved.
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