144 



Drop caused by kSclcrotinia lihcrtifuui occurred to a serious extent in 

 some greenhouses in the late crop during cloudy weather. 



A leaf-spot, probably of bacterial origin, and a rosette probably due to 

 Rhizoctonia were also found in the greenhouse crop. 



Maple. 



Sunscald or drouth injury was severe on hard maples along city 

 streets. The injury occurred in July and its effects were visible tor 

 several weeks. The h'aves turned bi-own about the margins and between 

 the veins and curled upward. 



Oak. 



Sunscald similar to that on maples occurred on shade trees during July. 



Oats. 



Leaf-spot or spot blotch caused by Hehniitlhosixiriinii tircnae was re- 

 ported from 28 out of the 254 fields of oats examined in the federal cereal 

 disease survey. R. V. Allison found it very abundant in fields in Ma(Uson, 

 Delaware, Wabash, Noble and Lagrange counties. Septoria leaf-spot was 

 found in four of these fields, bacterial blight in six, and scab caused by 

 Gibberella savhinctii. was found in eight with a maximum incidence of 45%. 

 Blast was reported from 92 of the fields and was found very abundant in 

 Noble, Lagrange, Wabash. Delaware and Madison counties. 



Covered smut caused by Ustilago Icavis was reported from eleven fields. 

 Loose smut caused by Ustilago avenae was found in 208 or 82% of the 

 fields examined, with an average incidence of 3.^% and a maximum of 24%. 

 Out of 30 fields, the seed for which was treated by the wet fttrmaldehyde 

 method, 13 showed loose smut with an average incidence of 0.2% and 

 a maximum of 2%. Out of 26 fields planted with seed treated by the 

 dry formaldehyde method, 22 showed loose smut with an average incidence 

 of 0.8% and a maximum of 8%. 



Leaf rust caused by Puccinia coroiHifti was reported from 197 or 77% of 

 the 254 fields with an average incidence of 17% and a maximum of 100%. 



Stem rust caased by Pucnnia (/nntthns was found in only 17 fields, with 

 an average incidence of 0.0% and a maximum of 30%. 



Onion. 



Smut caused by I' roe i/!^ lis (cpiiUic ha 

 in a few fields at Hannnond just across 

 infection in Illinois. 



Smudge caused by C'oUctotrichiiDi (■irciiKinf 

 onions in the Indianapolis market gardens. 



Pink root and Fusarium bull* rot were found in one field near Garrett 

 in Dekalb County. 



In Dekalb and Fulton counties there was considerable difflculty with 

 onions in muck soils due to a severe stunting of a large percentage of 

 the plants which resulted in a marked irregularity of the stand and con- 



