VI 



TO DESTROY^ 



APHIS, THRIPS, PEAR PSYLLA, 

 GRAPE LEAF HOPPER, Etc. 



WITHOUT INJUR Y TO FOLIAGE 



SPRAY WITH 



"BLACK LEAF 40" 



A CONCENTRATED SOLUTION OF NICOTINE SULPHATE. 



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

 tions and sprajdng 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. 

 H-lb. 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 3^our 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. 



Flease mention the Journal of Economic Entomology when icriting to advertisers. 



