How Wi* an acre 
buys a better corn crop! 
Seed corn treatment is now recognized as one of 
the necessary operations in successful corn pro¬ 
duction. 
ITS PURPOSE— The purpose of treating field or 
sweet seed corn with New Improved Semesan Jr. is 
to destroy the root-rot organisms living on the seed 
and to protect it from decaying under unfavorable soil 
conditions. It usually increases stands and yields. It 
will not control corn smut, wire worms, grubs, crows, 
moles, gophers, or similar pests. 
IT MAKES EARLY PLANTING SAFER— Early 
planted seed corn usually produces larger yields. New 
Improved Semesan Jr., by protecting seed corn from 
rotting, permits earlier planting. It helps to eliminate 
the loss of time and money incurred by replanting. 
HOW IT IS USED — New Improved Semesan Jr. is 
a dust. It is used at the rate of two ounces for each 
bushel of seed. The seed and the dust are mixed 
together in a treater for two to three minutes. Then 
the seed may be stored or planted at once. 
HOW IT WORKS— As soon as the seed is planted, 
New Improved Semesan Jr. throws around it a tiny, 
protecting cloud of gas or vapor. This vapor is harm¬ 
less to the seed and seedling, but it helps to prevent 
the disease germs (spores) on the seed and in the soil 
from attacking the germinating seed and seedling. No 
wonder it usually increases stands and yields! 
TREAT EVERY YEAR —Field or sweet corn should 
be treated with New Improved Semesan Jr. every 
year because soil and weather conditions cannot be 
predicted. Even high-grade seed corn usually benefits 
from seed treatment. 
LOW COST 1 PER ACRE —One pound of New 
Improved Semesan Jr. treats eight bushels of seed 
and costs one dollar. At the usual planting rate the 
cost of treatment per acre is only lj^c. 
UNIVERSITY OF ILLINOIS SAYS— “One of the 
best disinfectants for seed corn now on the market is 
New Improved Semesan Jr., the active ingredient of 
which is ethyl mercury phosphate.” 
