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TRI-OGEN 
The all-purpose spray 
A POSITIVE PLANT PROTECTION 
This complete Rose Garden Spray 
Treatment — Tri-ogen — offers the 
first definite mildew and black spot 
control combined with an insecti¬ 
cide. It kills all insects, including 
the sucking and leaf-eating types. 
It remains on foliage, repelling sub¬ 
sequent attacks. 
Tri-ogen also stimulates plant 
growth, resulting in fine foliage and 
luxuriant blooms. 
In four sizes: 
A. Small Kit (makes 16 quarts).$1.50 
B. Medium Kit (makes 64 quarts)... $4.00 
C. Large Kit (makes 32 gallons).... $6.00 
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O-.v , NON-POISONOUS LIQUID INSICTICIDE 
NON-POISONOUS LIQUID INSECTICIDE 
KILLS LEAF EATING AND SUCKING 
INSECTS 
Harmless To Humans And Pets—Non-Injurious To Plants And Blossoms 
There are two distinct classes of insects, surface and subsurface, the chewing “eating” kind 
and the sap “sucking”. The chewing kind attack and feed on the roots and foliage of plants, 
shrubs, etc. ; the sucking kind attack the stalks and foliage. A different insecticide used to be 
necessary for each class. Now “Green-Tox” kills both. It is a contact poison to sucking insects, 
and both contact and stomach poison to chewing insects ; yet it is harmless to humans and domestic 
animals. “Green-Tox” not only kills insects, but likewise repels them. Foilage sprayed with 
“Green-Tox” remains toxic to insects for many days and prevents reinfestation. No need to worry 
about insect damage when plants are sprayed with "Green-Tox”. It takes the “guess” work out 
of spraying. 
Prices: Not postpaid, ounce size, 35c; 6 oz., $1.00; 16 oz., $2.00; 32 oz., $3.50. Postpaid price* 
on small size as follows: oz. bottle, 40c; 6 oz. bottle, $1.10. 
SUNOCO 
(MySraNaSPRAJir 
SUNOCO will emulsify in any water and is clean to use. It will not deteriorate from season 
to season. Kills every scale it touches—San Jose, Oyster-shell, Rose scale. Tulip, Magnolia, Terrapin, 
Pit-making Oak, Oak Lecanium, European Elm, Gloomy, Scurfy, Dogwood Scurfy, Cottony Maple, 
Maple Leaf Woolly, Catalpa Mealy Bug, Pine Leaf Scale, Sitka Spruce Gall, Spruce Galt Aphid, 
Juniper Scale, Spruce Bud Scale, Red Spider, Lace Wing Bugs, Euonymos Scale. 
SUNOCO SPRAY is used to control scale insects on all types of Evergreens, Fruit and Shade 
Trees for both summer and dormant spray. Ask for free booklet giving detailed information. One 
gallon, $1.40; 15 gallons, $11.50. F. O. B. Dallas. 
PROTECT YOUR TREES FROM THESE PESTS 
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 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. 
SANTOCIILOR 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 Paradichlorobenze, 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 en¬ 
circled 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 year, 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. 
COST IS LOW—ORDER NOW 
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. 
TERMITE CONTROL This item is 
being recommended for control of ter¬ 
mites. Ask your County Agent for 
information on this subject. 
Fig. 1. The soil about the peach tree 
made smooth and ready for treatment. 
2. A correct treatment. One ounce 
of finely divided paradichlorobenzene 
placed on the soil about the tree in 
a continuous narrow band approxi¬ 
mately 2 inches from the tree. 
Fig. 3 Four to six shovelfuls of 
dirt free of grass, large stones, sticks, 
etc., placed on top of the paradichloro- 
benzene, 3 to 6 inches deep and packed 
Fig. 1 Fig. 2 Fig. 3 down. 
Tree Borer 
5 POUNDS NET 
SANTOCHLOR 
KILLS 
peach tree borer 
manufactured eV 
°nsaivto Chemical Works 
St. Louis.U.S.A 
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ROBERT NICHOLSON SEED CO. —61— DALLAS. TEXAS 
