46 



MAINE AGRICUIvTURAIv E^XP^RIMENT STATION. IQII. 



home-made concentrates. Bordeaux was most effective and 

 commercial sulphur sprays were superior to the home made. 

 The mechanical lime-sulphur mixture was highly inefficient. 



No injury was effected by the sulphur sprays. "In fact while 

 there was occasionally an apple on the bordeaux plots whose 

 appearance had been damaged b}^ spray, the apples on the lime- 

 sulphur plots were smoother and apparently more waxy and 

 more highly colored than on the check plots."* 



Prof. R. K. Beattie** of the Washington State station in a 

 comparative test of bordeaux and lime-sulphur on Jonathan and 

 Ben Davis trees obtained the following data. The proportions 

 of lime-sulphur indicated were obtained by diluting commercial 

 concentrates to the desired strengths. 



Table 6. 



Spray. 



Per cent. 

 Clean Fruit. 



Lime-sulphur i-1-4 



Lime-sulphur i-1-5 



Lime-sulphur ^-1-6 



Lime-sulphur 1st and 2nd applications 

 Lime-sulphur 2nd and 3rd applications 



Lime-sulphur all three applications 



Lime-sulphur all sprayings 



Bordeaux with vermorel nozzle 



Bordeaux with bordeaux nozzle 



Bordeaux made with milk of lime 



Bordeaux made with lime water 



Bordeaux all trees 



Unsprayed 



The last application, made just after the petals fell, was on 

 a rainy day. No injury to fruit or foliage occurred with the 

 lime-sulphur sprays, but fruit russeting resulted from bordeaux ; 

 such fruit was classed as unmarketable and was not included 

 in the above table. 



* Brooks, C. loc. cit. 



** Beattie, R. K. "Lime-Sulphur Wash for Apple Scab." 

 Fruit Grower. Jan. 1909, pp. 6-7. 



Western 



