Successive mass rearing of dacne picta crotch (coleoptera: Erotylidae) on dried shiitake mushrooms (lentinus edodes (henn.) sing.)

Abstract

A method for the mass rearing of Dacne picta, one of the most notorious pests of the Shiitake mushroom, was examined. One hundred pairs of newly emerged adults were allowed to feed and oviposit on 50g of dried Shiitake mushrooms at 14L-10D, 25°C. These females laid the majority of their eggs in the period 8 to 14 days after emergence. The average egg, larval and pupal periods were 3, 30 and 7 days, respectively. About 260 adults were produced per day over a 22 day period in this way. No significant difference in female longevity, number of eggs laid, days from oviposition to emergence or number of emerged adults was found between the 4th and 8th successive generations. © 1990, JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY. All rights reserved.