138 



Rust caused by Gymnosporangium junipeH-virgimanae was rather severe, 

 according to Pipal, in the southeastern part of the state. The abundance 

 of the red cedar in southern Indiana is of course very conducive to rust 

 epidemics. 



Oskamp reports that blister canker due to Nurmnnlaria discreta is in- 

 creasing in importance in Indiana and further reports its extreme severity 

 on the Ben Davis variety near Greencastle. It is also roporiod to be present 

 on that variety in an orchard near Peru. 



According to the observations of Oskamp and Pipal, hitter rot caused 

 by GlomereUa cingulata was not as destructive as usual this year. Bitter 

 rot occurs mainly in southern Indiana. 



A serious root trouble occurs to a considerable extent in central and 

 southern Indiana, especially on the Grimes variety. This root rot usually 

 results in the death of the affected trees and cases are on record where 

 whole orchards have been destroyed in the southern part of the state. 

 Whether or not this is the Xylaria root rot has not been ascertained. 



Frost injury to apple blossoms was of course severe in certain sections of 

 the state and caused a marked reduction in yield. A very bad case of this 

 was noted in a large orchard near Goshen where absolutely all of the blos- 

 som clusters were killed. A peculiar crinkling of apple leaves due to the 

 death of the lower epidermis was very widely noted during June and was 

 attributed to freezing injury. There was a marked prevalence of frost 

 marking of the fruit in the central and southern i)arts of the state in all 

 stages from narrow frost bands and blossom-end russet to russeting of the 

 entire surface of the fruit, and even malformation of the fruit. So prevalent 

 was this type of injury that it assumed considerable significance as a blem- 

 ish in the prize exhibits in the shows. 



The lace-like russeting of the fruit resulting from Bordeaux injury and 

 arsenical burning of the foliage was found in sprayed orchards. 



Asparagus. 



Rust caused by Puccima asparagi was not found in the Indianapolis 

 market gardens but was noted at Lafayette. 



Aster. 



Fusarium wilt was severe locally. 



Barlkv. 



Thirty-six barley fields in l.l counties were examined in the federal cereal 

 disease survey. Ergot caused by ('Jaricvps purpurea was found in two fields. 

 Spot blotch caused by Hehitiiithosporium sativum was reported from eight 

 fields, net blotch caused by IJelminthosporium teres from 11 fields, and 

 stripe caused by Hclminthosporium gramme-iim from two fields. Spot blotch 

 is the most serious of these diseases in Indiana and was very aliundant 

 in the eight fields above noted, all of which were in Madison, Delaware and 

 Noble counties. Scab caused by Gihherella sauHnetii was found in 19 or 



