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During development of our large-scale rearing program there has been a gradual transition from hand labor to mechanization. Devices have been developed eliminating need for a large labor force and contributing a degree of efficiency not possible with hand labor. During the early stages of the program it was recognized that collection of emerging adults required a technique that would utilize the insects physical responses, i.e. phototactic and geotactic. A device used early in the program was a modification of the 4-gal frozen-food can described by Richmond and Husman (1957), but it proved inadequate as production increased. A cardboard collecting box was then developed that utilized plastic ice cream containers as the trap. Pupae were placed in the cardboard box and when they emerged they were moved into the plastic traps in response to dim overhead incandescent light. This was superior to the frozen-food can but required considerable labor in constructing boxes, cleaning, and decontaminating the reusable plastic traps. Also a considerable loss occurred where moths died inside the cardboard boxes, apparently because they were unable to locate the small exit holes. A device was constructed (Mangum et al. 1969) utilizing a series of cardboard boxes connected by plastic manifold pipes to a central trap. A gentle flow of air was pulled through the pipes and a BL lamp was used to attract the moths into the traps. The device was adequate for large-scale production, but it required use of specially made cardboard boxes. Care had to be taken that the boxes fitted properly, otherwise emerging moths could escape. There was also some mortality inside the boxes. This collection method has now been superseded by a device that eliminates use of cardboard boxes and uses both the phototactic and geotactic responses of the insect.
Document Type: Research Article
Publication date: October 15, 1971
More about this publication?
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.