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Efficacy of 30 min fumigations at 2,500, 3,700, and 4,600 ppm of hydrogen cyanide (HCN) was tested in the laboratory as a treatment against representative Hawaiian quarantine pests. Effective results were obtained for nymphs and adults of the banana aphid, Pentalonia nigroneroosa Coquerel, in red ginger flowers;an armored scale, Pseudaulacaspis cockerelli (Cooley), on oleander leaves; the green scale, Coccus viridis (Green), on ixora leaves; and nymphs of the coconut mealybug, Nipaecoccus nipae (Maskell),on palm. Other species of mealybugs and ants also were susceptible to the treatment, particularly at the highest concentration. Mostnymphs and adults of a thrips, Sciothrips cardamomi (Ramakrishna), in red ginger flowers survived all concentrations of fumigation. All adults of an orchid weevil, Orchidophilus aterrimus (Waterhouse), survived th~ treatment. The suitability of HCN fumigation is discussed.
Document Type: Research Article
Publication date: April 1, 1991
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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.