V 



TO DESTROY^= 



APHIS, THRIPS, PEAR PSYLIA, 

 GRAPE LEAF HOPPER, Etc. 



WITHOUT INJURY TO FOLIAGB 



SPRAY WITH 



"BLACK LEAF 40" 



A CONCENTRATED SOLUTION OF NICOTINE SULPHATE, 



''Black Leaf 40" is highly recommended by experiment sta- 

 tions and spraying experts throughout the entire United States. 



Owing to the large dilution, neither foliage nor fruit is stained. 



Also, ''Black Leaf 40" is perfectly soluble in water — no clog- 

 ging of nozzles. 



PRICES: 



10-lb. Can. $10.75 Makes 1500 to 2000 gallons for Pear 

 Thrips, with addition of 3 per cent, dis- 

 tillate of oil emulsion; or about 1000 gal- 

 lons for Green Aphis, Pear Psylla, Hop 

 Louse, etc., or about 800 gallons for 

 Black Aphis and Woolly Aphis — with 

 addition of three or four pounds of any 

 good laundry soap to each 100 gallons of 

 water. 



2-lb. Can, $2.50. 

 Can, 0.75. 



If you cannot obtain "Black Leaf 40" from a local dealer, 

 send us P. 0. Money Order, and we will ship you by express at 

 the above prices (for the United States), prepaying the expressage 

 to your nearest railroad town in the United States. There is a 

 duty charged on all shipments made into Canada. 



THE KENTUCKY TOBACCO PRODUCT COMPANY 



INCORPORATED 



LOUISVILLE, KY., U. S. A. 



Please mention the Journal of Economic Entomology when writing to advertisers. 



