Good News for Rose Lovers 
Tri-ogen 
Reg. U. S. Pat. Off. 
THE ALL-PURPOSE SPRAY 
No More Bugs or Bothers 
TRI-OGEN once and for all 
solves the black-spot problem. 
It gives complete protection 
against all fungous diseases, in¬ 
cluding mildew, black-spot, rust, 
canker, etc. 
TRI-OGEN protects abso¬ 
lutely against all insect pests. 
Its stimulating value promotes 
vigor and growth, healthy green 
foliage—with resulting luxuriant 
blooms. 
That is why gold medals have 
been won consistently by the 
amateur and professional growers 
who have adopted the Tri-ogen 
treatment. 
Read the experiment re¬ 
counted in the American Rose 
Annual which is reprinted here. 
Read the enthusiastic, volun¬ 
teer endorsements of its value 
by rose experts. 
THERE IS NOTHING 
IN THE WORLD LIKE 
TRI-OGEN 
