Granular formulations of phorate, disulfoton, and dimethoate broadcast on the soil surface near iris plants, applied at dosages of 10, 10, and 16 lb active per acre, respectively, and dimethoate spray at 1 lb active/100 gallons were evaluated for effectiveness in control of the iris borer, Macronoctua onusta Grote. A dimethoate spray applied to iris leaves and exposed rhizomes when the flower buds were enclosed within the leaf sheath resulted in excellent control; a blue variety of German iris had weakened flower stems. Good control of the iris borer occurred when a dimethoate spray was applied while the flowers were in full bloom. Of the broadcast applications, only dimethoate gave adequate control.
Document Type: Research Article
Publication date: December 1, 1967
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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.