Ethylene Dibromide, Methyl Bromide, and Ethylene Chlorobromide as Fumigants for Control of Apple and Blueberry Maggots¹ in Fruit²

Authors: ROTH, HERBERT; RICHARDSON, HENRY H.

Source: Journal of Economic Entomology, Volume 63, Number 2, April 1970 , pp. 496-499(4)

Publisher: Entomological Society of America

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Abstract:

In laboratory fumigations 1961-7, dosages and exposures of ethylene dibromide (EDB), methyl bromide (MeBr), a 1:3 mixture of EDB and MeBr, and ethylene chlorobromide (ECB) were tested for efficiency against eggs, larvae, and pupae of the apple maggot, Rhagoletis pomonellat (Walsh), and the blueberry maggot, R. mendax Curran. The true pupal stage, which develops by the 5th day after formation of the puparium, of either or both species, survived following fumigation with 16 mg EDB per liter for 5 hours, 24 mg for 4 hours, and 32 mg for 2 hours at 21.1-23.3°C, and 24 mg for 8 hours at 10-12.2°; 32 mg MeBr for 24 hours and 48 mg for 8 hours at 21.1-23.3°; and 32 mg of the mixture for 8 hours at both temperature ranges. Complete mortality was obtained with puparia 4 days old or less in 2-hour exposures with 8 mg per liter of EDB alone or in the mixture at both temperature ranges. Eggs and larvae were killed in infested apples and blueberries with 32 mg MeBr, 6 mg EDB, or 2 mg ECB per liter in 2-hour exposures.

Document Type: Research article

Publication date: 1970-04-01

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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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