To set up a sterile male technique program to control Aedes albopictus (Skuse) in areas in northern Italy, a pilot mass-rearing facility is under development. For this purpose, experiments were carried out to find the optimal larval density for the optimization of the rearing parameters,
i.e., to obtain the fastest larval development, the highest larval and pupal survival rate, and large-sized pupae. Several different larval densities, from 40 to 2,874 larvae per liter, were tested. For densities from 40 to 600 larvae per liter significant size differences were found among
pupae obtained under different larval densities. The larvae raised at the lowest density tended to be smaller and to develop most slowly, i.e., longer pupation time. Also, increasing water volume and depth seemed to negatively affect the pupation success. Compared with the other larval densities
tested, the larvae reared at a density of 2,874 larvae per liter developed slightly faster and showed higher survival rates, indicating this density as appropriate for the development of a mass rearing, at least using the current larval diet.
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.