VI 



TO DESTROY 



APHIS, THRIPS, PEAR PSYLLA, 

 GRAPE LEAF HOPPER, Etc. 



WITHOUT INJURY TO FOLIAGS 



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: 

 lOH-lb. Can. $12.50 flakes 1600 to 2100 gallons for Pear 

 Thrips, with addition of 3 per cent, dis- 

 tillate oil emulsion; or, about 1100 gal- 

 lons for Green Aphis, Pear Psylla, Hop 

 Louse, etc., or about 850 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. 

 2K.lb. Can, $3.25. 

 K-lb. Can, 0.85. 



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, prepajang the expressage to your nearest rail- 

 road town in the United States. 



KENTUCKY TOBACCO PRODUCT CO. 



INCORPORATED 



LOUISVILLE. KY.. U. S. A. 



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



