Winter Meeting. 285 



The work was carefully clone in each of these orchards. Great 

 ■care was taken in making the mixtures and applying them. In each 

 <'ase a thorough application was made ; at every spraying the trees 

 and fruit were covered with the mixture. In each orchard where we 

 carried on spraying experiments this year there was but a small per 

 cent, of bitter rot, so we are unable to report any definite results as 

 far as the prevention of that disease is concerned, except that in the 

 orchard at Olden, and also in the Mountain Grove orchard, there was 

 some less bitter rot on the apples under the trees as well as those on 

 tlie trees, in the sprayed plots. 



There was practicallv no apple scab either on spra3'ed or un- 

 -prayed plots in any orchard where experiments were conducted this 

 season, so we are unable to report any definite results as to the pre- 

 vention of this disease. As we had but little Bitter Rot and no Apple 

 Scab, experiments as far as these diseases are concerned are of little 

 value. But there is a point connected with the work that I believe 

 is valuable to us, especially to the fruit growers who are carefully 

 studying the business. The first applications of Bordeaux mixture 

 in practically all of the orchards sprayed, in the experiment work 

 thiis season, rusted the apples more or less. However, the rusting of 

 the fruit by the spray mixture was not confined to the plots under 

 tlie control of the Experiment Station, but orchardists who carried on 

 spraying work also had damaged fruit from rust. I am informed also 

 that this damage to the fruit was not confined to South Missouri, 

 but is quite general the present season. The reason for this is hard 

 to account for, Irowever I thought it best to mention these facts simply 

 that we may arrive at some conclusion that will be of benefit in the 

 spraying work hereafter. I 1)elieve in spraying apples for Apple Scab, 

 Codling Moth and Bitter Rot. I believe that it will pay many times 

 over what it will cost one season with another. 



We have used the liquid mixture exclusively in our experiment 

 work at the station, but we expect the coming season to carry on ex- 

 periments with the dust machines, using the dust mixtures, and I 

 hope that we may be able to obtain results that will justify using this 

 method of spraying a part of the season at least. If the dust method 

 i;'. practical and will do the work satisfactorily it will be more con- 

 venient to apply than the liquid spra}'. 



In the spraying experiments this season some plots were spraved 

 throughout the entire season. The first spraying was given in x^pril 

 and the last about the middle of August. The trees and fruit were 

 kept covered with the mixture during the entire season. Other plots 

 were given two and three sprayings earlier in the season and the 



