10 BULLETIN 368, U. S. DEPARTMENT OF AGRICULTURE. 
TaBLE IIJ.—Spraying cherries for the control of brown-rot at Salem, Oreg., during the 
am season of 1915. 
| =a 
Brown-rot (per cent). 
| 
Plat. Treatment, if any. Royal Ann. Black Republican. 
_At After At After 
picking. | storage. | picking. | storage. | 
SESE seal ee eee tee 2 RUC eens Doses a4) hie re Ae Pe 
{ 
IND SESS nies saan eee Bordeaussmixtures eee sae 0.17 11 0.03 Z | 
INGE Qa. sets ime-sulphurs. Sass so oe eee eae ee eee | Be, Soa | eee Er -05 8 | 
INOS Soaps ace eeanee Self-boiled lime-sulphur................- B25 14 -07 2 Hi 
ING: Aone ete ween Unsprayeds.3 (50-0 Gos see eee | . 67 55 03 18 | 
There was not enough brown-rot evident on any of the plats at 
picking time to make the contrasts of any great interest. (PI. III.) 
After the severe storage tests the effects of spraying were more eyi- 
dent, the fruit from the self-boiled ime-sulphur plat having only one- 
fourth as much brown-rot as that from the unsprayed plat in the case 
of the Royal Anns and one-ninth as much in the case of the Black 
Republicans. With the Royal Anns better results were secured with 
Bordeaux mixture than with the self-boiled lime-sulphur. The 
sprayed fruit held up much better at the local canneries than the 
unsprayed fruit. 
SUMMARY AND CONCLUSION FOR CHERRIES. 
While the work on cherries has not been carried out as fully as was 
desired, it seems evident that the Monilia blossom blight was the 
cause of serious losses in the Willamette Valley in the season of 1915” 
and the brown-rot of the fruit the cause of considerable loss at the 
canneries and heavy losses in the shipping of fresh fruit. No early 
sprayings were made, and therefore no results were obtained on the 
effect of spraying upon the blossom infection. The brown-rot at the 
canneries and in storage has been greatly reduced by late applica- 
tions of Bordeaux mixture and self-boiled lime-sulphur. It seems 
probable that a treatment for cherries similar to that outlined for 
prunes would give satisfactory control of both the blossom infection 
and the later brown-rot attacks on the fruit. 
WASHINGTON : GOVERNMDNT PRINTING OFFICE: 1916 
