ISSN: 0041-3216

ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 63 Number 2
Research Papers
Insecticidal control of sweet potato weevils (Coleoptera: Curculionidae) in Hawaii
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Six insecticides applied at different dosages and pre-plant/post-plant spray combinations were evaluated in field trials for three seasons for control of the sweet-potato weevils Cylas formicarius elegantulus (Summers) and Euscepes postfasciatus (Fairmaire). Carbaryl applied as a preplant dip (at 3.33 ml Al I-1) and sprayed at 1.12 kg Al ha-1 at three-week intervals was the best treatment. Performances of other treatments are discussed.
Keywords: Insecticides; Weevils; Sweet potato; Hawaii