DUBAY SEED 
DISINFECTANTS 
CERESAN FOR COTTON 
Lower Acre Costs of Cotton by 
Increasing Stands and Yields with CERESAN 
With this new seed treatment, Ceresan, you can now plant cotton earlier because 
Ceresan, which is applied to the seed as a dust, protects the seed against rotting. 
Early planted cotton also is less susceptible to attacks by boll weevil. 
The use of Ceresan as a seed treatment prevents heavy plant losses caused by 
damping off and results in a uniform stand of vigorous plants. 
Ceresan is easily applied as a dust at the rate of 2 to 3 ounces to the bushel. 
Since Ceresan produces a uniformly better stand of plants, the quantity of seed 
sown per acre may be reduced. 
In one test with cotton, Ceresan-treated seed showed an improvement of 75% 
in stand over the untreated. The saving in seed, the better stand, freedom from 
disease and increased yield more than reijay the small cost of this remarkable 
treatment. 
Ceresan should also be used to treat your seed sorghums. Costs less than three 
cents per acre. 1-Ib. tin, 70c; 5-lb. tin, $3.00; 25-lb. pail, $12.75; 100-lb. drum, 
$50.00. 
NEW IMPROVED SEMESAN JR. 
iFor Seed Corn 
Applied by the simple dusting method at the rate of 2 ounces to each bushel 
of seed field or sweet corn, Semesan Jr. offers the cheapest and most effective 
form of disease insurance. U. S. Government tests show Semesan Jr. increased 
the yield of disease-free seed as much as 1.9 bushels an acre. 
Its use protects the seed from rotting in the ground and makes possible earlier 
planting which generally results in increased yields. Costs less than three cents 
per acre. 
4- oc. tin .......$ .30 
1-lb. tin ...............75 
5- lb. tin ........ 3.25 
This Actual Comparison shows you 
WHY EXPERIMENT STATIONS 
RECOMMEND CERESAN 
NEW IMPROVED CERESAN 
FOR SEED GRAINS 
For treating wheat, oats and barley. % ounce will treat 
1 bushel of seed. Used for the control of smut on above 
grains, also for stripe of barley. One pound treats 32 bushels 
of seed, at a cost of 2 cents a bushel. 1-lb. tin, 70c; 5-lb. 
tin, $3.00. 
SEMESAN 
For Vegetable and Flower Seeds 
Semesan should be applied in 
dust or liquid form to flower or 
vegetable seeds before planting. 
It is harmless to the seed, but 
deadly to any disease organisms 
that may be on the seed. One 
ounce treats 15 to 30 lbs. of 
seed. Effective in controlling 
damping-off, many seed-borne 
diseases and such devastating 
gladiolus diseases as hard rot 
and scab. 
2-oz. tin ...$ .35 
1-lb. tin .... 2.25 
5-lb. tin . 9.90 
Use Semesan for Healthy Plants 
SEMESAN BEL 
For Seed Potatoes 
Instead of using chemicals for treating seed 
potatoes which require tedious soaking and 
which sometimes injures the seed piece, use the 
quick, easy, time-saving Semesan Bel treat¬ 
ment. Simply mix, dip, drain, dry and the 
potatoes are ready for planting. No hot water 
necessary. By controlling these diseases, germi¬ 
nation is generally increased, stand improved 
and the resultant crop of potatoes is bigger 
and of better quality. Crop increases of from 
10% to 15% are common. One pound treats 
70 to 80 bushels of seed. 
4- oz. tin .$ .45 
1-lb. tin . 1.50 
5- lb. tin ... 6.75 
PROTECT YOUR TREES FROM BORERS 
The peach tree borer (Sanninoidea Exitiosa Say) feeds actively in the fall, spring, and summer 
months, and lies dormant during the winter. It attacks the soft inner layer of bark usually just 
beneath the ground and sometimes along the larger roots. The presence of these pests is indicated 
by masses of gum mixed with brown frass or “sawdust” exuding from the injured trunk. The borers 
become full grown from the middle of June to the first day of September, and then spin silk cocoons 
which hatch into clear winged moths. During the six days these moths are alive they lay from 200 
to 800 eggs—which shows what a menace they will become if not properly checked. 
SANTOCHLOR WILL KILL THEM 
The popular modern way to rid your orchard of these worms or borers is to apply Paradichloro- 
benzene around the base of all trees. Monsanto’s trade name for this product is SANTOCHLOR, 
which is unadulterated Paradichlorbenzene, practically 100 per cent pure. It is a white crystalline 
substance that changes to a gas heavier than air, and penetrates the burrows of the borers. It is 
fatal to insects, but will not harm man or domestic animals unless taken internally. 
The SANTOCHLOR method has rapidly replaced the old-fashioned “worming” process for control 
of borers. Digging the worms out with a knife may be as injurious to the tree as the worm. In two 
“wormings” with a knife it is seldom possible to get more than 90% of the pests. With SANTOCHLOR, 
however, it is a common occurrence to kill from 95% to 100% with one application, and it is also a 
great deal less bother. 
A RING OF DEATH 
SANTOCHLOR is applied to the cleaned surface of the ground around the base of the tree, after 
any masses of gum have been removed from the tree trunk. The trunk should be completely encircled 
by one ounce of the white crystals, care being taken to leave two inches space between the trunk and 
the inside of the white band. This mound is then covered with fine earth and packed down firmly. 
One treatment per tree, in the fall preferably, will usually be sufficient protection. Complete directions, 
together with the best times to apply for different States, appears on every package. 
A five-pound package of SANTOCHLOR is sufficient for 80 trees. An experienced man should be 
able to treat 15 to 20 trees in an hour. 
Don’t postpone the use of SANTOCHLOR. Order a handy carton and see for yourself what the 
product will do for your trees. 
Pound cans, 75c; 5 lbs., $2.75, postpaid. If wanted in larger quantities, write for prices. 
PURE PRRWCHtORRCNZli 
DALLAS. TEXAS 
57 
