New Yokk Agricultural Experiment Station. 



483 



On July 15, each and every plant was carefully examined and 

 all which showed the least trace of rust were destroyed. This 

 process was repeated July 27 and August 2. A ugust 27, when the 

 plants were " lifted," the check and plots sprayed with salt and 

 with Bordeaux mixture were found to be so completely overrun 

 with rust that it was thought best to destroy the entire stock in 

 these three plots. There were just a few plants which did not 

 show rust but they were so very few that no record of their num- 

 ber was kept. Practically all were rnsty. 



The results of the experiment may be tabulated as follows: 



mixture 



(l-7k form- 



nfa.) 



Check 

 (untreated.) 



69 



35 



890 = 100 % 



236 = 100 ?:, 



In this experiment, all of the fungicides used were prepared 

 by myself and, with the exception of two sprayings were apijlied 

 by myself. The two sprayings excepted wei*e made by employees 

 under my direction. 



* In the coursse of the season nearly 500 of the plants were lost fn.m various causes ; some 

 weie killed by stem-rot, others wei'e torn out or covered up in cultivation or met with some 

 accident. The iiumherp given in the oolumn under "Number of plants treated" represent 

 the numbers of living plants en the several plots July 1T>. 



