736 CONNECTICUT EXPERIMENT STATION REPORT, 1909-1910. 



mildew is not a conspicuous parasite of the sweet pea, as it 

 is not listed on this host in the more prominent works on the 

 mildews. The absence of the mature stage renders its deter- 

 mination somewhat doubtful, but as the conidial stage agrees 

 with the above species, and as this has been reported on several 

 other species of Lathyrus, it is more likely to be this than any 

 other species. 



WALNUT, ENGLISH, Juglans regia. 



WHITE MOLD, Microstroma Juglandis (Ber.) Sacc. We have 

 reported this fungus before on cultivated specimens of our 

 native butternut. It was sent to the writer in July, 1909, by 

 Dr. R. T. Morris on the variety Kaghazi of the English walnut, 

 grown on his farm at Stamford. While this fungus forms 

 conspicuous white patches on the under sides of the leaves, it 

 is not usually a very serious pest. 



WHEAT, Triticum vulgare. 



STINKING SMUT, Tilletia fcetens (B. and C.) Trel. Very 

 little wheat is grown in this state at the present time, so that 

 this smut has not been collected here in the fields. However, it is 

 of economic importance in another way. At least four times 

 during the last few years samples of commercial wheat feeds, 

 usually in the shape of middlings, have been sent to the station 

 for examination because animals refused to eat the feed. Two 

 of these samples have come from feed men and two from farm- 

 ers. A microscopical examination in each case has shown the 

 presence of the spores of the stinking smut. In a sample 

 recently received from Mr. R. A. Jones of Bethlehem, the smut 

 spores were unusually abundant. Mr. Jones said that the mid- 

 dlings had been fed to hogs, that it made them sick, and that 

 some of them refused to eat more. After changing to other 

 food the hogs got over their trouble. 



Feeds that contain these spores indicate not only that they 

 are made from middlings, but from badly smutted or injured 

 wheat, which would be of no value for flour. Whether or 

 not the smut spores are themselves the injurious principle might 

 be questioned, but there seems to be no question, if they are 

 not, that the action of this fungus, or its opening the way for 



