164 



Proceedings of Indiana Academy of Science 



The dry weather of May and the extreme heat and drouth of June 

 and July greatly aggravated tomato Fusarium wilt and yellows in early 

 cabbage, and caused a heavy loss in stand in late potatoes because of rot- 

 ting of the seed pieces soon after planting. Beet leaf-spot was much 

 worse than usual. The dry weather probably checked apple scab and 

 wheat scab, but greatly accentuated the leaf rust damage in wheat be- 

 cause of the excessive evaporation from the leaves. 



DEPASTURES FHOM NORMAL lEMPEHATL.'HE 



APR 



JUIIE 



JULY 



OCT 



Fiy. 1. Indiana weather conditions, HI21. (Jraphs iciJiX'sent departures from normal 

 temperature and precipitation as shown l)y the monthly averages for the state as a 

 whole. 



The mild, very wet August probably lessened the severity of cab- 

 bage yellows, potato wilt, and tomato blossom-end rot in the canning 

 crop. However, the excessive rainfall of August and September and 

 high temperature of the latter month undoubtedly was the cause for 

 the greatly increased severity of watermelon anthracnose in central 

 Indiana, grape black rot, apple black rot, and other fruit rots including 

 that caused by a Phytophthora, potato early blight, various powdery 



