The Cultivated Native Plums and Chekries. 



93 



asaw varieties and the Wild Goose. In Michigan I have seen it 

 only on the fruit, which it changeis into conspicuous bladders. In 

 Marj'land and Georgia it is common on shoots of wild Chickasaws 

 and on cultivated Wild Groose, and it rarely attacks the fruit. It 

 does considerable injury every spring.* 



'• (5. An obscure blight often attacks native plums — as Wild 

 Goose, Robinson, Mariannn and others — causing the branches to 

 die back during the growing season. The leaves and large 

 branches and sometimes the whole tree wilt and become brown 

 without apparent cause, and sometimes the tree dies. The roots 

 do not appear to be involved, for they often send up healthy 

 shoots after the entire top has died. This blight has been known 

 in middle Georgia for several years and does more injury to plums 

 than all other troubles combined. § » 



" 7. The peach-rosette also attacks the native plums and per- 

 haps is destined to make more trouble than any other disease in 

 the south and west. (See Jour. INIycology IV, 143; same VI, No. 

 4 ; also bulletin of Div. Veg. Pathologj^ on ' Additional Evidence 

 of the Communicability of Peach Yellows and Peach Eosette.')" 



The fruit-scab (Fig. 11), which injures many varieties, iJsi dis- 

 cussed for me by Professor L. H. Pammel, of the Iowa Agricul- 

 tural OoUege: 



, Fiffure 11.— Fruit-scab. Natural size. 



" (riadosponum carpophilum: So far, I have found this fungus 

 only on the fruit, but in case of the peach Mr. Galloway records it 

 upon the leaves as well. When plums are ripe, or just turning in 



* See Smith, Jour. Mycology, iv. No. 3. 



flbid. 



