WILLIAM KROEMER & SONS, INC., HICKSVILLE, L. I. Zi 

Products of Rohm & Haas Research 
for insect and disease control 
give Long Island growers better crops 
DITHANE, sprayed at least once a week, has 
proved itself extremely effective against both 
early and late blight... results in increased 
potato yields whenever used in a systematic 
program. 
YELLOW CUPROCIDE is an outstanding cuprous 
oxide fungicide with high copper content, ex- 
tremely small particle size and great sticking 
qualities. Sprayed or dusted on crops in a regular 
weekly schedule, it is very helpful in warding 
off early and late blight. 
ROHM & HAAS DDT PRODUCTS 
25% DDT EMULSION CONCENTRATES (liquid) is 
highly stable and compatible with DITHANE . . . 
provides one of the best possible controls against 
pests. DDT, in the form of Rohm & Haas D-50 
WETTABLE POWDER, is also available if preferred. 
Write for folders describing these control programs. 
DITHANE & CUPROCIDE are trade-marks, Reg. U. S. Pat. Off. 

Tested, proved and chosen by 
WILLIAM KROEMER & SONS, INC. 

