SPOROZOA 



4SI 



spores are again produced. P6brine is a disease of the greatest 

 importance to the silkworm industry. It is effectively restricted 





S^Wi^ 



Fig. 215. — -Nosetna bombycis. Section of intestinal epithelium of silkworfn 

 showing spores of Nosema and also the peculiar multiplication resembling the 

 growth of a mold. {From Doflein after Stempell.) (See also Fig. 83, p. 165.) 



by a careful microscopic examination of all the silkworm eggs 

 and the exclusion and destruction of all those in which the para- 

 site exists (Pasteur's method). 



