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Steinemema glaseri Steiner were applied in autumn field trials against Japanese Popillia japonica Newman, and oriental beetle, Exomala orientalis (Waterhouse),larvae in 1992, 1993, and 1994. Nematodes were used in conjunction with various irrigation regimes and surfactants. The greatest reduction in larvae occurred where S. glaseri was used at 19.7 X 109/haand irrigated daily with 3.2 mm of water for 14 d. In 19 of 24 treatments where rates of 1.24-24.7 X 109/ha were used with and without irrigation, S. glaseri reduced larval densities below a threshold of 8/0.09 m2• The use of 2 surfactants provided no additional control. Soil temperature data for Rhode Island revealed applications should be made before 1 September to maximize efficacy.
Document Type: Research Article
Publication date: October 1, 1995
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.