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'Purtlund JAuin'e 
Insecticides and Fungicides 
To know what insecticides to use it must be understood that there are two classes of insect 
pests, the chewing and the sucking insects. The chewing insects feed on the foliage so their food 
must be poisoned by spraying or dusting with some poison such as arsenic. Among the chewing 
insects are the coddling moth, curculio, potato beetle, tomato worm, gypsy moth, and similar pests. 
The sucking insects do not eat the leaves but puncture the tissues of the leaf and suck the 
plant juices. These pests are controlled by contact insecticides. Among the most common are the 
aphis which are soft bodied insects and are killed by being suffocated, or by absorbing the poison. 
Besides the aphis there are the various kinds of scale which are found on the trunk and branches. 
These are best controlled by Lime Sulfur, and oil sprays when the trees are dormant. 
Fungus diseases are not caused by insects but by spores which collect on the foliage causing 
such troubles as blight, scab, mildew, brown rot,etc. There are two kinds of fungicides, those made 
from sulphur, and those from copper. The fungicidies from sulphur are best for control of apple 
scab, peach leaf curl, mildew, while the copper fungicides, either as a spray or dust, for potato, 
celery, and tomato blight. After the disease has started it is difficult to stop it, so fungicides should 
be used early as a preventive measure rather than a cure. 
During the last few years several insecticides have come on the market which are effective in 
destroying the pests but which are not harmful to human beings, or animals. Among these are Ever 
Green, Noxon, and Bug Death. 
Insecticides for 
S.-W. ARSENATE OF LEAD 
Probably the most widely used insecticide for 
eating insects. Use 1 to 1 y 2 lbs. to 50 gallons 
water. 
S.-W. ARSENATE OF CALCIUM 
Especially valuable as a spray to control the 
potato bug. % to 1 lb. to 50 gallons water. 
BUG DEATH—see page 112. 
S.-W. DUSTS—see page 112. 
EVER GREEN—see page 113. 
NICOTEEN PYROX—see page 113. 
S.-W. PARIS GREEN 
One of the oldest and most reliable paris 
greens on the market. 
PYROX 
A combination spray of Arsenate of Lead and 
Bordeaux. Sticks like paint. 
Sizes: 1 lb., 5 lb., 10 lb., 25 lb., 50 lb., 100 lb. 
Write for Prices 
POMO GREEN WITH NICOTEEN—see page 
113. 
Eating Insects 
KALCO Spreads the Spray 
and Makes It Stay 
* 
Kalco gives complete coverage of Lime Sul¬ 
fur or Bordeaux on opening buds, unfolding 
leaves and blossoms. This means the greatest 
protection against scab, brown rot or other 
fungus infection. It causes the spray to dry 
quickly in a durable coating and enables the 
orchardist to get the greatest benefit from sprays 
that are applied in rainy weather. Use 1 pound 
to 100 gallons of spray mixture. 
POTATO GROWERS: Kalco will spread your 
sprays and make them stick, rain or shine. 
100 lb. sack, 18c. per lb.; 50 lb. sack, 19c. 
per lb.; 10 lb. sack, 21c. per lb.; trial size can, 
25c. 
Insecticides for Sucking Insects 
APHINE 
For green, black, or white fly, thrips, red 
spider and other sucking pests. 
Price, M pt., 25c.; % pt., 40c.; 1 pt., 65c.; 
1 qt., $1.00; 1 gal., $3.00. 
BLACK LEAF 40 
For destroying Green and Rosy Apple Aphis, 
Wooly Aphis, Cabbage Aphis, Lice on fruit trees, 
shrubs, and on garden and sweet peas, and all 
forms of soft-bodied sucking insects, without 
injury to foliage. 
Price, 1 oz., 35c.; 5 oz., $1.00.; 1 lb., $2.10; 
2 lbs., $3.10; 5 lbs., $5.85; 10 lbs., $10.15. 
CYANOGAS 
A new chemical insecticide which is rapidly 
coming into favor. 
Grade G is prepared especially for greenhouse 
work, is very simple to use, and not dangerous 
If used according to directions. 
NICOFUME—Liquid 
A highly refined tobacco extract, containing 
40% “free” nicotine, which may be used both for 
spraying and for fumigating. 
Price, 1 lb. can, $2.25; 4 lb. can, $5.75; 8 lb. 
can, $10.00. 
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