Laboratory Rearing of the Imported Fire Ant1
Authors: KHAN, A. R.; GREEN, H. B.; BRAZZEL, J. R.
Source: Journal of Economic Entomology, Volume 60, Number 4, August 1967 , pp. 915-917(3)
Publisher: Entomological Society of America
Abstract:A laboratory technique was developed for rearing colonies of the imported fire ant, Solenopsis saevissima richteri Forel, from dealated mated queens. The mated queens were confined individually in shell vials and allowed to produce minim workers. When the workers began to forage, the minature colonies were transferred to soil-filled I-gal glass jars and kept in a lighted room.
At a relative humidity of 75-85% and a temperature of 80-85˚F, 22-28 days were required for mated queens to rear the 1st adult minim workers, 4 months to rear the 1st minor workers, and 7 months to rear the 1st major workers. In I colony, the first alate male and female adults emerged in 9 months. These alate adults eventually took part in mating flights as occur in nature and completed the reproductive cycle of the colony.
For mass rearing of colonies, a special chamber was devised with sides made of wood, the top of semitransparent polyethylene, and the bottom of tin. Relative humidity between 75 and 85% was maintained by holding I inch of water inside the chamber, and temperature between 80 and 85˚F. was maintained inside the chamber by holding the room temperature at about 80˚F. Sunlight or artificial light was allowed to fall on the colonies through the semitransparent polyethylene top. By using this procedure many colonies at various stages of development may be maintained in the laboratory.
Document Type: Research Article
Publication date: August 1, 1967
- 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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