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A field experiment was conducted in 1991 and repeated in 1992 to compare the use of carbofuran and field drainage as tactics for control of rice water weevil, Lissorhoptrus oryzophilus Kuschel, and to examine the effect on yield of rice (Oryza sativa L.) caused by 1- to 3-d delay in reflooding after drainage. Results showed that, although timely draining of fields significantly reduced immature weevil populations, the tactic was not always reliable nor economical. Reinfestation by rice water weevil populations after drained fields are reflooded can nullify the benefits derived from drainage. Grain yields were not affected by delayed reflooding of fields.
Document Type: Research Article
Publication date: February 1, 1994
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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.