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Sodium Selenate 
Sodium Selenate may be used in the following manner to kill 
all insects which feed on plants: Dissolve 314 ounces of Sodium 
Selenate in 1 gallon hot water. Add 4 teaspoonfuls of this solution 
to 1 gallon of water to water the plants to be treated. Water plants 
from bottom. Have the plant on the dry side and let the plant 
stand in the water solution until the top of the soil is moist. Use 
only once. Care should be taken not to get any solution on the 
foliage as it will burn. This is very poisonous and should not be used 
where vegetables or edible plants will be grown for at least one 
year. 
Hot Water Treatment 
Some prefer to use the Hot Water Treatment in fighting cycla- 
men mites. It is as follows: Use a container deep enough so the 
entire plant may be covered. Adjust the water to 110 degrees 
Fahrenheit and be sure you have enough water to come up well 
over the top of the foliage. It is necessary that you use a theremo- 
meter for this treatment as too warm water will injure the plant 
and too cool water will not kill the mites. Submerge plant, pot and 
all in an upright position and leave in bath only 15 minutes, adding 
more hot water as needed to keep the temperature at 110 degrees 
Fahrenheit. Allow the plant to drain in a warm place and keep out 
of direct sunlight for twenty-four hours. 
Oven Sterlization of Soil 
Soil may be sterilized in the oven by heating at 200 degrees for 
1 hour. 
Crown Rot 
Crown Rot is caused from too uuch water, crown down too deep 
in the soil, or water poured into the top of pot and staying in the 
heart of the plant. The use of cold water in watering plants also 
encourages crown rot. Fermate, which is a duPont fungicide, may 
be used as preventive to combat it. Fermate may be ordered 
from A. H. Hummert Seed Co., 2746 Chouteau Ave., St. Louis, Mo. 
Another treatment for crown rot is to remove the plant from 
the pot and cut away all the brown rotted roots. The plant is easily 
rerooted by placing in a glass of water so that only the stem which 
is to be rooted is in the water. New roots will usually appear in 
a week or ten days. 
NEMATODES are thread-like worms which attack the root 
system of plants thus causing knots to form on them. In these 
knots, or enlargements the Nematodes grow to maturity at the 
expense of the host plant which feeds and shelters them. These 
worms not only rob the plant of food, but may also poison it to a 
certain extent by their excretions. To overcome Nematodes ster- 
lize your potting soil. 
