226 
there seems no good reason for believing that spraying, even with the 
most improved methods with which we are now familiar, would be prac¬ 
ticable or profitable on a large scale. At Garrett Park, where this kind 
of work was done with the greatest care and where every precaution 
was taken to make the various preparations cover the foliage, rust was 
just as abundant on the sprayed as on the unsprayed wheat. A criti¬ 
cal study of the plants in the field afforded what seems a satisfactory ex¬ 
planation of the foregoing fact. On examining the leaves immediately 
after they had been sprayed in the most careful manner, it was found 
that fully one-half of the surface was wholly free from any signs of the 
liquid put on. The shape of the leaf, its position on the stem, manner 
of growth, and waxy covering, all conspire to render it exceedingly 
difficult to wet, and unless thoroughly wetted or covered by the fungi¬ 
cide there is little hope of preventing the reproductive bodies of the 
rust fungi from gaining an entrance. 
Finally, it may be said that while improved machinery and fungi¬ 
cides and improved methods may make it possible to profitably spray 
our cereals, with our present means this can not be done. The work, 
however, should not be abandoned; on the contrary, it should be con¬ 
tinued until the matter is definitely settled one Avay or the other. At 
the same time the far more promising work of breeding rust-resisting 
varieties should be taken up and carried forward along such lines as 
offer the most promising results. 
ADDITIONAL NOTES ON PEACH ROSETTE. 
By Erwin F. Smith. 
I.—SPREAD OF THE DISEASE. 
The peach rosette continues in Georgia and has appeared in South 
Carolina. Mr. W. L. Anderson, of Ninety-six, sent specimens from his 
peach orchard, and wrote as follows, under date of June 14, 1892: 
In tlie summer of 1890 I noticed some of the peach trees turning yellow; but, from 
information at hand, concluded it was not what is called the yellows. The trees (3) 
died, root and branch. No sprouts have ever put forth from the old roots of any of 
these or other trees since attacked. Last year I lost 6 trees from the same disease. 
This year I cut down 8 as soon as I noticed the peculiar growth of the leaves. I 
have 2 left, some one-fourth mile apart. They are, at this writing, evidently mori¬ 
bund and will be dead in another month. 
Mr. Anderson states that several of his neighbors have lost trees, 
and that the disease is entirely new to him, although he has lived in 
that region and been interested in peacli-growing for a long time. 
Some field work begun in Georgia in 1890 and 1891, could not be 
reported upon fully in Bulletin 1,* because incomplete or only just begun 
*Div. Veg. Pathology, U. S. Dept, of Agr., 1891. 
