TO DESTROY 



APHIS. THRIPS. PEAR PSYLLA, 



GRAPE LEAF HOPPER, Etc.. 

 WITHOUT INJURY TO FOI^IAGE 



SPRAY W^ITH 



"BLACK LEAF 40" 



A CONCENTRATED SOLUTION OF NICOTINE SULPHATE. 



LISTEN TO THESE: 



From PROFESSOR C. P. GILLETTE, Colorado Agricultural Experiment Station: 



I have found a thorough application of "Black Leaf 40" in the pro- 

 portion of one to 1000 to either Green Apple Aphis or the Woolly Apple 

 Aphis will kill 100 per cent, of those actually treated. 



From O. E. BREMNER, Secretary California State Commission of Horticulture: 



I have used "Black Leaf 40" in combination with Arsenate of Lead 

 for calyx spraying of apples, and not only prevented the attack of codling 

 moth, but completely controlled the curl leaf aphis. 



From PROFESSOR JOHN B. SMITH of New Jersey AgriculturiJ Experiment Station: 



So far as plant lice are concerned, I believe you have a, perfect remedy 

 for them in "Black Leaf 40." 



In short, "Black Leaf 40" is higlily recommended by Experi- 

 ment Stations and spraying experts throughout the entire United 

 States. 



Owing to the large dihition, neither fohage nor fruit is stained. 



Like our "Black Leaf," Extract, "Black Leaf 40" may be applied 

 Avhen trees are in full bloom and foliage, without damage to either 



Also, "Black Leaf 40" is perfectly soluljle in v/ater — no clogging 

 of nozzles. 



PRICE: 

 lOJ lb. can, $12.50 Makes 1000 gallons, containing "lui; of 1 per cent. Nicotine." 

 2i " can, 3.25 " 240 " " " " " " 



§ " can, .85 " 47 " " " " " " 



These prices prevail at ALL agencies in railroad towns throughout the 

 United States. If you cannot thus obtain "Black Leaf 40," send us P. O. 

 Money Order and we will ship you by express, prepaid. 



THE KENTUCKY TOBACCO PRODUCT CO., Louisville, Ky., U. S. A. 



INCORPORATED 



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



