One Thousand Questions in California Agriculture AnsweredWickson, Edward J. (Edward James)
Science
One Thousand Questions in California Agriculture Answered
Wickson, Edward J. (Edward James)
Agriculture -- California
I think most of my potatoes will have some scab. Will you please tell me
if my next crop would be apt to have scab, provided I got good clean
seed and planted in the same ground?
It seems demonstrated that a treatment of the seed will practically
insure against potato scab. One method is dipping the potatoes in a
solution of corrosive sublimate. Dissolve one ounce in eight gallons of
water and soak the seed potatoes in this solution for one and one-half
hours before cutting.
Gopher Poison.
I have some alfalfa, some hogs and some gophers, also some strychnine
and carrots. If I put the strychnine on the carrots, and endeavor to
poison the gophers, and the hogs get hold of the poison will it kill
them?
You will find that hogs are liable to poison like any other animal, and
the safest way to poison the gophers, while the hogs are running in the
field is to bury the poisoned carrots very deeply in the gopher hole and
then put a row of sticks or branches over the mouth of the hole so that
the hogs cannot root around and get at the poisoned carrots.
How to Make Bordeaux.
Use copper sulphate (bluestone) 5 pounds; quick-lime (good stone lime),
6 pounds; water, 50 gallons. Put the bluestone in a sack and hang it so
it will be suspended just under the surface of a barrel of water over
night, or dissolve in hot water. Use one gallon of water to one pound of
bluestone. Slake the lime in a separate barrel, using just enough water
to make a smooth, clean, thin whitewash. Stir this vigorously. Use
wooden vessels only. Fill the spray tank half full of water, add one
gallon of bluestone solution for each pound required, then strain in the
lime and the remainder of the water and stir thoroughly. The formula may
be varied according to conditions, using from 3 to 8 pounds of bluestone
to 50 gallons of water and an equal or slight excess of lime. Use the
stronger mixture in rainy weather. Keep the mixture constantly agitated
while applying.
Formula for Lime-Sulphur.
To make lime-sulphur take quick-lime, 20 pounds; ground sulphur, 15
pounds and water 30 gallons. Slake the lime with hot water in a large
kettle, add the sulphur and stir well together. After the violent
slaking subsides add more water and boil the mixture over a fire for at
least one hour. After boiling sufficiently strain into the spray tank
and dilute with water to the proper strength. If a steam boiler is
available, this mixture may be prepared more easily on a large scale by
cooking in barrels into which steam pipes are introduced. This mixture
cannot be applied safely except during the winter when the trees are
dormant. A large proportion of the lime-sulphur used in the State is
purchased already prepared in more concentrated form.
Index
Fruit Growing.
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