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Journal of Agricultural Research 



Vol. VI, No. is 



D. gossypina has been shown by Edgerton (3) to be primarily a 

 wound parasite of cotton bolls and by Taubenhaus (9) l to produce a 



Fig. i. — Spores of different storage-rot organisms: A, Diplodia tubericola from dasheen; B, Diplodia tuber- 

 icola from sweet potato; C, Diplodia gossypina from cotton; D, Diplodia sp. from Mangifera indica; E, 

 Diplodia maclurae from Toxylon pomiferum; F, Fusarium solani. X 500. 



typical Java blackrot of sweet potatoes. The writer found the fungus 

 produced a decay of dasheens identical with that caused by D. tuberi- 



1 Reference is made by number to " Literature cited," p. 571. 



