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
By exposing the olives to the light and air, either during the salting
or immediately after, ripe olives may be given a uniformly black color.
Also, fruit which is less ripe and which shows red and green patches
after processing with lye, becomes an almost uniform dark brown color.
To do this, the olives are removed from the brine and exposed to light
and air freely for one or two days. Your lye was stronger than
necessary. With ripe olives it is desirable to use salt and lye together
to prevent softening, and the common prescription is two ounces of
potash lye and four ounces of salt to the gallon of water after the
bitterness is largely removed by using one or two treatments with two
ounces of lye to the gallon without the salt. It is necessary to draw
off the solution, rinse well, and put on fresh solution several times
during the process to get the best results.
Seedling Olives Must Be Grafted.
Will olive trees grown from the olive seed be the right thing to plant?
Will they be true to the parent tree or will they have to be grafted?
Olives which a seedling olive tree will bear will be, as a rule, very
inferior and generally of the type of the wild olive. All such trees
must be grafted in order to produce any particular variety which you
desire.
Olives, Oranges and Peppers.
We have been told that olive trees easily become infested with a fungus
disease which they then impart to the orange tree. The same objection is
raised to the planting of pepper trees. May this be true in some parts
of the State and not in others?
The fungus of which you have heard is the "black smut." It is a result,
not a cause. It grows on the honey dew exuded from scale insects and if
your trees have no scale they have no fungus. The olive trees and pepper
trees may communicate this trouble to citrus trees, or vice versa -
whichever gets it first gives it away to the other. If you will work
hard enough to kill the scale wherever it appears you can have all these
trees, but, of course, it costs a lot to fight scale on big pepper
trees, and it is, therefore, wisest usually to choose an ornamental tree
not likely to accept the scale.
Budding Olive Seedlings.
I have planted olive seeds which are just sprouting now. Can these be
budded next June or July in the nursery row, or can they be
bench-grafted the following winter?
Your seedlings may make growth enough to spur-bud this summer. The
ordinary plate-bud does not take freely with the olive. Some of them may
do this; other seedlings may be slow and have to be budded in the second
summer. Watch the size and the sap flow so that the bark will lift well
- which may not be at just the time that deciduous trees are budded. It
may be both earlier or later in the season. Graft evergreens like the
olive in the nursery row; not by bench grafting.
Budding Old Olives.
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