Abstract
SUMMARY The causative agents of a disease affecting the giant silkworm, Platysamia cecropia L., have been isolated and identified as being Aspergillus flavus Link and A. luchuensis Inui. Infection of each of the stages of the life history of the insect has been possible using A. flavus. Although the insect possesses mechanical barriers to infection, once the fungus penetrates these, infection results.