|
Abstract: Two species of cecid flies were found to be important mushroom infesting species in the United States, Mycophila speyeri (Barnes) and Heteropeza pygmaea Wmnertz. Temperature was found to exert considerable effect upon the reproductive rates of the larvae of both species. M. speyeri reached pest proportions at temperatures in the range of 21° to 25°C while H. pygmaea did best at temperatures at about 27° to 33°C. Fungal species on which the cecids were reared affected the number of young produced, Pénicillium was unsatisfactory, Aspergillus and Trichoderma were suitable as a food, however, a greater number of young were produced by cecids reared on Volvanella sp. and Agaricus bisporus. Contammed cultures of A. bisporus had higher populations of cecids than pure cultures. Crowding tended to bring on sexual reproduction in Mycophila speyeri, but not Heteropeza pygmaea.
Full text download: ISMS subscribers
ISHS members & pay-per-view
Translate:
   |