Contents 

 I. The Problem Page 



II. 



A. In Europe X 



B. In the United State* 11 



C. In California 14 



D. General Summary 14 



III. Experimental 14 



a. Introductory - Obtaining of the various 



strains used in culture and inoculation 



work 14 



b. Apricot inoculations to obtain rate of 



growth, type of growth, color of 



conidia, and approximate sizes of 



conidia 18 



c. Steamed rice cultures to obtain the color 



of the first trelve strains 25 



d. Cherry inoculations to obtain color of conidia 



and general appearance of fungi on 



the fruits of all sixteen strains 27 



e. Czapeck's agar cultures to obtain general 



types of growth of strains 1, 2, 3, 4 



and 12 32 



f. Inoculation of the five strains, 1, 2, 3, 4 



and 12 into one apple to further test their 

 individuality 33 



g. Surnnfcry and conclusion* 35 

 IV* Literature cited 37 



V. Additional bibliography 38 



Illustration* 



