Qeorge H. 'Peterson, Inc., Fair Fawn, J\[ew Jersey 23 
4 *= 
5 lbs. Porno-Green with Nicotine. For Black-Spot, Mildew, Leaf-eating 
Insects, and Aphis.$3 00 
1 Improved Dust Gun.. 1 50 
$4~50 
Special Offer of combination for.$3 90 
5 lbs. Pomo-Green without Nicotine. For Black-Spot, Mildew, and Leaf¬ 
eating Insects. (Used where Aphis are not always a garden problem) .$1 75 
1 Improved Dust Gun. 1 50 
$3~~25 
Special Offer of combination for.$2 85 
Five pounds of either material is sufficient for keeping 50 Hybrid Tea Roses in good health 
throughout the active growing season. 
Sent Express Collect. 
Pomo-Green is not for Roses alone, but for the entire garden. 
Tri-ogen 
Another very good commercial fungicide and insecticide is Tri-ogen. This must be used 
as a spray and prevents black-spot and mildew and kills both sucking and chewing insects. 
A. Small Kit (makes 16 quarts; protects 12 to 20 Roses for season).$1.50 
B. Medium Kit (makes 64 quarts; protects 50 to 80 Roses for season).4.00 
C. Large Kit (makes 32 gallons; protects 100 to 160 Roses for season). 6.00 
D. Estate Kit (makes 128 gallons; protects 400 to 600 Roses for season). 20.00 
When to Apply Dust or Spray. Best applied in early morning or late in the evening when 
the air is quiet. Since prevention rather than cure must be the spirit of complete control of 
black-spot, it is essential that you start dusting or spraying as soon as the plants are in active 
growth, when the leaves are fully open and the new shoots are taking on height. Apply ap¬ 
proximately every ten days, but less frequently during prolonged hot, dry spells in midsummer. 
Thoroughness of application is far more important than the quantity of material used. 
The under side of the foliage must be reached because it is there that the tiny spores of 
black-spot, just like tiny seeds, begin to germinate in the presence of moisture. Hence the 
paramount importance of seeing that Rose foliage is covered with an active fungicide during 
rainy periods. 
SLUGS AND WORMS. These chewing pests are killed with the lead arsenate contact of 
most all commercial mixtures. 
APHIS OR GREEN FLY. Various colored aphis suck the juice from the leaves and must 
be killed by smothering their bodies with a contact spray such as Black-Leaf 40, Red Arrow, 
or Ever Green spray. While they can easily be seen, still they are not nearly so injurious as 
the invisible spores of black-spot. 
Red spider, leaf hoppers, thrips, and other almost microscopic insects are also killed by 
contact sprays, or by the fine dusting sulphur in the Pomo-Green mixture. 
ROSE BUGS AND CHAFER. A very familiar pest whose appearance is, fortunately, 
limited to about two or three weeks in June. Troublesome in some localities, but never present 
in others. A very stupid insect that feeds on the petals of white and light-colored Roses and 
must be picked off the bloom and drowned in kerosene. There is no other remedy. 
Spraying Dormant Plants 
Give your Rose plants a clean bill of health late in the fall before protecting for the winter 
and again early in spring before growth begins. Use either lime-sulphur or Bordeaux mixture 
at recommended dormant strength. 
The reader should not allow the foregoing to discourage him, as with a well-prepared soil, 
strong, vigorous plants to start with, and a little watchfulness to nip in the bud any attack of insect 
or disease, he will have little to fear. It is the indifferent, indolent grower, and the planter of green¬ 
house-grown Roses that have been raised among tropical conditions, whose plants suffer severely. 
South Haven, Mich., October 18, 1935 
I am delighted with the Roses, as they are the finest plants I have ever seen—such wonderful root-systems 
and strong canes. This is saying a great deal, for all my Roses for the past twenty-some years have come 
f rom Peterson .— Mrs. R. S. McCrimmon. 
