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Northern Corn Rootworm1 Control by Granular Insecticide Application at Planting and Cultivation Time2

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The experimental insecticide carbofuran provided outstanding control of Diabrotica longicornis (Say) larvae when applied on 3 dates. Each of 5 approved corn rootworm insecticides were applied to separate plots on 9 successive dates to compare the relative merits of cultivationtime treatment (June) as opposed to planting-time treatment (May). Phorate, Dasanit® (O,O-diethyl O-[p-(methyl. sulfinly) phenyl] phosphorothioate) , and BUX® 3:I mixture of m- (1-methylbutyl) phenyl methylcarbamate and m- (1-ethylpropyl) phenyl methylcarbamate) gave equally good protection applied in either Mayor June. Dyfonate® (O-ethyl S-phenyl ethylphosphonodithioate) performed better when applied at planting time in May, but diazinon gave best results when applied at cultivation time in June. Overall, there was an 82.5% reduction of corn rootworm larvae in corn roots from these treatments.

Document Type: Research Article

Publication date: October 1, 1969

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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.
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