Abstract
Several properties of the cocoon and raw silk produced by the larvae reared on an artificial diet or mulberry leaves to which 0.01% guanidine hydrochloride had been added to control the incidence of infectious flacherie, were investigated. No differences in the properties of the cocoon and raw silk, including the length and weight of the cocoon filament, raw silk percentage, reelability percentage, etc., were observed between the control and the guanidine-treated larvae. Since this chemical is fairly cheap. it could be used as an antiviral or prevention agent against infectious flacherie of the silkworm.
