Growth and reproduction of ‘Cnephasia’ jactatana Walker (Lepidoptera: Tortricidae) under two rearing systems

Mass rearing (MR) and individual rearing (IR) systems for the production of ‘Cnephasia’ jactatana were evaluated in the laboratory using the attributes of larval survival, pupal weight, emergence rate, fecundity and fertility.The IR system gave a significantly lower larval mortality rate and higher adult emergence rate than the MR system. Insects from the IR were heavier and presented higher fecundity and fertility than those from the MR. Adults from the IR emerged within 7 d while emergence from the MR took up to 15 d. The IR system is recommended for the production of insects for research.