ASGROW SEEDS ARE BRED — NOT JUST GROWN 

Subject: 
SPERGON-DDT TREATED SEED 
DEAR CUSTOMER: 
Seed protected with Spergon-DDT, a dual purpose seed treatment to control weevils and 
destructive insects while in storage, and seed decay organisms during germination. Sper- 
gon is a natural lubricant which tends to prevent injury to seed flowing through your 
planter. In cooler climates seed may be planted earlier. Spergon has been widely tested 
by experiment stations in this country and abroad. Spergon-DDT is nonvolatile and 
insoluble in water, thus does not deteriorate when seed are carried-over. There have been 
no reports of injury when feeding carry-over seed to livestock, but the manufacturer re- 
.commends that it be fed at the rate of 1/5 Spergon treated to 4/5 untreated seed. 
Increased stands and yields from Spergon-DDT treated seed, insurance against storage 
insects and the ever present possibility of replanting labor costs, far outweigh the nomi- 
nal cost of treatment. 
New York Medical School reports conclude from results obtained in toxicity tests with 
Spergon, “That the material can be utilized as a protectant for cotton and other seed 
without danger of intoxicating those who handle it or those who consume the products 
preserved by it.” 
The combination of lubricant properties, noninjurious nature, storage non-deterioration, 
high activity and nominal cost make Spergon-DDT treated seeds the most widely ac- 
cepted seed for early and successful planting, with least possible risk in planting losses. 
This year we are treating Sorghums, Hybrid Corn and Open-Pollinated Corn with Sper- 
gon-DDT as it is processed. Texas Certified Sorghums are offered Spergon-DDT treated 
at a small extra charge of 15c cwt. Hybrid Corn and Open-Pollinated Corn is DDT treat- 
ed with no extra charge being made. For further information, please contact your 
nearest ASGROW office or see your ASGROW salesman when he calls on you. 
Yours very truly, 
Cssociated Ceeds, Inc 

Prompt ‘Shipment From. San Antonio, Phone LD-515 — Robstown, Phone 135 — Weslaco, Phone 360M 
Lubbock, Phone 22764 — Texas 
