70. 



Kinds of Spray Material Used 



Black rot, milder, and other fungous diseases are controlled ^'^ith 

 Bordeaux mixture. Bordeaux ras generall^^ prepared on the farm rhere used • 

 An average of 9.3 pounds of lime and an average of 8.S pounds of copper 

 sulphate ^^-e re added to 100 gillons of ^ater. On the average, the cost of the 

 lime and copper sulphate used to make 100 gallons of spray ras 72 ctots. 

 (table 66.) 



Table 66. -- Quantity and t^bst of spray material used per 100 gallons 



of spra^^, all areas, 1928 l/ 







» ! 



Cash cost of 







Quantity : 



Price : 



materials per 





Kind : 



used in 100 : 



per iznit : 



100 gallons 







gallons : 



•■■* 



of SDrav 







: Pounds : 



Cents ; 



; Dollars 





Bordeaux (home made) a: 











Lime ; 



t 9.3 ; : 



: 1.0 : 



; .09 





Copper sulphate * 



8.2 • : 



: 7.7 : 



\ .63 





Total 



; 17.5 : 



; - . ; 



; •72 ' 





Bordeaux (ready m.ixed) ; 



; 16,0 : 



; 12.8 



: 2.05 





Arsenate of lead : 



; 3.2 : ' 



: 17.1 : : 



: :.55 





Copper acetate 



; 2.1 ! 



: (Pints) • ; 



: 41.2 



; .87 





Nicotine sulphate 



: 0.75 : : 



: 147.0 



; 1.10 





1/ Arkansas, 1929. 











For the last sprny of the season some of the Arkansas ^ro'-^ers used 

 acetate of copper instead of Bordeaux, (table 67.) On ripening fruit, 

 Bordeaux leaves a covering of spray rhich is objectionable. 



THble 67. - Proportion of each kind of spray material used, by 



. areas, 1928 



Area 



Percentage of 

 total gallons 



Bordeaux 



Other 



percentage of total gallons to 

 vrhich 77ere added 



Nicotine 

 sulphate 



Arsenate 

 of lead 



Soap and other 

 spreaders 



^Chautauqua Co., N.Y. 

 JTiagara Co., N.Y. 

 J^inger Lakes, N.Y. 

 lludson Valley, N.Y. 

 North East, Pa. 

 Girard, Pa. 

 Michigan 

 Arkansas, 1929 



All areas 



percent 



100.0 

 100.0 

 100.0 

 98.6 

 95.6 

 92.1 

 98.0 

 89.9 



Percent 



1/ 1.4 

 2/ 4.4 

 3/ 7.9 

 4/ 2.0 

 5/10.1 



Percent 



10.4 



6.4 

 39.1 

 35.7 

 48.4 

 17.4 



Percent 



96.9 



22.8 

 20.7 

 96.2 

 93.2 



87.7 

 50.7 



94.4 



5.6 



14.7 



70.4 



1/ Pyrox. 



^2/ Arsenate reported applied alone. 



I5/ Arsenate and nicotine sulphate. 



(4/ Nicotine sulphate and copper carbonate. 



H/ Copper acetate. 



Percent 



a»0 . X, 



45.9 

 22.7 

 56.8 

 60.3 



46.7 



