R.B. BUCHANAN SEED CQ 
MEMPHIS, TENNESSEE. 
Controlling Diseases of Flowers 
Leaf Spot—This disease causes brown spots on the leaves. These fungus troubles are par¬ 
tially controlled by spraying with Bordeaux Mixture once a week throughout the season. 
CANNA—Leaf Roller—This is a caterpillar which feeds on the leaves and may be found 
with the leaf rolled around it. Saddleback Caterpillar—Another caterpillar which attacks the 
Canna is the Saddleback Caterpillar. These pests can be controlled by spraying or dusting 
with Dutox. See page 73. 
CHRYSANTHEMUM—Leaf Spots—This is one of the worst diseases of Chrysanthemums. 
The spots are dark and circular; affected leaves turn yellow. Spray with Bordeaux Mixture. 
Red Banded Leaf Roller—The Red Banded Leaf Roller is one of the caterpillar pests attacking 
the Chrysanthemum. Spray or dust with Dutox. 
PEONY—Bud Blight—This disease blasts the buds, rots the young shoots, affects the leaves 
at the tip, extending back in a V-shape; diseased part is brown. Use Bordeaux Mixture. 
Ants—Ants are common on Peony buds, but they do not damage the buds or plant. They feed 
on a sweet secretion from buds. Use Acme Ant Kill. Rose Beetles—Long-legged clay-colored 
beetles about one-third inch in length. Spray or dust with Dutox. 
PHLOX—Mildew—The surface of the leaves becomes covered with a white powder. This 
disease may kill the leaves. Spray with IV 2 to 2 tablespoonfuls of Dry Lime Sulphur to 1 
gallon water, or dust with Superfine Sulphur. Leaf Spot—This disease causes brown spots 
on the leaves. Spray with Bordeaux. 
ROSES—Black Spot—This disease causes large black circular spots on the leaves. Dust with 
Floragard or spray with Bordeaux. Brown Canker—This disease shows up as purple spots 
on the stem and leaves. The blossoms are often attacked. Spray with Bordeaux Mixture. Cater¬ 
pillars—There are several different kinds of caterpillars that attack Roses. The stinging Rose 
Caterpillar is one. Dutox will destroy all caterpillars. Mildew—This disease covers the leaves, 
buds and young shoots with a white, flour-like mold. To control this, dust once every five 
days with Floragard. Leaf Roller—Leaf Rollers often attack Roses. The Olique Banded 
Leaf Roller feeds on the leaves and buds. To control this pest dust with Floragard. 
Rose Scale—A gray or whitish circular scale that readily sloughs off. Spray in the early 
spring before the buds open or in late fall after the leaves are off, with Volck or Oil Emul¬ 
sion. Aphis or Plant Lice—These are small, soft-bodied insects. They are green, red and 
black in color and cluster around the young shoots and under the leaves, causing the leaves 
to curl under. These pests attack every kind of flower and shrub. To control them, spray 
regularly once every four or five days with Evergreen or Black Leaf 40. 
SNAPDRAGON—Blight —This disease causes yellow spots on the leaves. Later they turn 
dark. Anthracnose—This disease is like blight. Spray with Bordeaux Mixture. Rust—One of 
the most serious diseases of Snapdragons; rusty brown pustules of spores formed on leaves 
and stems. Use Floragard or Superfine Sulphur. 
ZINNIA—Leaf Spot—This disease causes large black spots on the leaves, which can be con¬ 
trolled by using Bordeaux Mixture. Web worms or Caterpillars—Webworms attack many 
different flowers, shrubs and trees. It is one of the common caterpillars. Spray with Dutox 
or Arsenate of Lead. 
Insects and Diseases of Shade Trees and Shrubs 
Shade trees and shrubs about the home grounds are frequently infested with insects and 
diseases. The average home owner is equipped for controlling the insects and diseases 
which commonly infest shrubbery and small shade trees. Bring or send us a specimen of 
your diseased shrub or some of the insects which infest same and we will attempt to 
identify same and recommend a control. 
Shade trees are usually so high they require elaborate and expensive power sprayers to 
properly control insects and diseases which attack them; therefore we feel it better to 
have someone who is equipped with these special spray machines to see your trees and 
give an estimate on caring for them. We usually have the names, phone numbers and 
addresses of reliable men who do this work, and will be glad to give you the names if 
you will come to see us or phone our number—6-0616. 
HOW TO CONTROL INSECTS AND DISEASES OF PECANS 
THE OBSCURE SCALE—Has become a serious pest on cultivated pecans, especially in the 
Gulf Coast region, and is gradually being spread throughout the pecan growing area of 
the United States. The covering of this particular scale is dark gray and almost circular in 
outline. It agrees so well in color with the bark of the tree that it is exceedingly hard to 
detect. This is the reason for its name, Obscure Scale. 
SCAB—This fungus is by far the most destructive disease pecan growers have to contend 
with, and is increasing in seriousness from year to year. The disease may attack the nuts, 
twigs and leaves. It is first noticed in early spring as elongated brown or black lesions along 
the veins on the under side of the leaves or along the ridges of young nuts. Later, black or 
brown, slightly raised circular spots appear on leaves, twigs and nuts. 
Other diseases, such as leaf blotch, brown leaf spot and nursery leaf blight, cause serious 
damage in some localities of the pecan belt, while diseases known as little leaf and crown 
gall are of less importance. 
The following is an excellent spray program for combating all the diseases and insects 
of pecans: 
DORMANT SPRAY—For Scale Insects. While trees are completely dormant, spray with 
Buchanan’s Oil Emulsion at the rate of 5 gallons to 45 gallons of water. 
FIRST SUMMER SPRAY FOR SCAB, CASE WORM, CATERPILLAR, LEAF SPOT AND 
APHIDS—Apply just after fruit has set. Use prepared Bordeaux at rate of 8 pounds to 
50 gallons water, 2 pounds hydrated lime and IY 2 pounds Arsenate of Lead. Add to this 
% pint Black Leaf 40. 
In most cases pecans should be sprayed three more times during summer at intervals of 
three weeks, using same materials as first summer spray. See pages 72, 73 and 74 for spraying 
materials. 
Black Spot on Roses. A Serious 
Fungus Disease Which Requires 
Constant Attention. 
Aphis or Plant Lice on Nasturtiums 
Oyster Shell Scale 
Pecan Scab on a Twig and a Nut 
Pecan Scab on Leaves 
(Page 69) 
