Evaluation of Steinernema feltiae and S. bibionis (Rhabditida: Steinernematidae) for suppression of Lymantria dispar (Lepidoptera: Lymantriidae) in Pennsylvania,U.S.A. |
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| Affiliation: | 1. Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA;2. Interdisciplinary Biological Sciences Program, Northwestern University, Evanston, IL 60208, USA |
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| Abstract: | Lymantria dispar L. larvae exposed to the entomogenous nematodes Steinernema feltiae Filipjev and S. bibionis (Bovien) for ⩾ 16 h in laboratory petri dish tests averaged 93 and 91% mortality, respectively. Nylon pack cloth bands, lined with Pellon fleece or terry cloth, placed around oak tree boles were treated with nematode suspensions in central Pennsylvania. Fifth and 6th stage host larvae collected from beneath these bands after nematode treatment averaged 28% mortality. |
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