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In a greenhouse study, nonedible oils extracted from seeds of "karanj," Pongamia pinnata Pierre; "mahua," Madhuca longifolia Koen. Macbr. var. latifolia Roxb. Cheval; and "pinnai," Calophyllum inophyllum L., trees were more effective than the oil of neem, Azadirachta indica A. Juss, in reducing the survival of the rice green leafhopper, Nephotettix virescens (Distant), and its transmission of the rice tungro viruses (RTV), and as effective as oil of custard-apple, Annona squamosa L. Insect mortality was 100% after 4 d on rice plants sprayed with oils at 5% concentration in contrast to 69% insect survival on control plants. RTV infection was 17-35% in oil-treated plants and 51% in the control.
Document Type: Research Article
Publication date: October 1, 1988
More about this publication?
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.