ome years ago several growers in one county
ordered Stuart trees and these trees, now bearing, turned out to be
Teche, so there is some uncertainty as to the variety names in some
sections.
The planting distance varies considerably, depending somewhat upon
fertility of soil and length of growing season. Most of the plantings
are too close, having as many as 20 or more trees per acre. Because of
the longer growing season in the lower half of the state, trees grown
there will be larger at a given age than those grown in the Piedmont
section.
+Cultivation Methods+
Intercrops or cover crops are usually grown to increase the income of
the farm. Cultivation programs vary according to the intercrop grown.
Pecan trees are grown on various types of soil, which also vary greatly
in their fertility. Different fertilizers are recommended for these
varying conditions. Fertilizer is usually applied late in February or
early in March, several weeks prior to the swelling of the buds. The
exact time of application varies according to the area in the state in
which the trees are grown. Many of the soils of the state are probably
too acid for best growth of pecans and the necessary winter cover crops
that should be grown in the plantings. In some soils that have been
limed, or where the soil pH is 7.0 or approximately so, the application
of zinc, to the soil has not eliminated rosette. Few such conditions
exist in South Carolina, but where these conditions do prevail, zinc
treatment is being tried in the form of sprays, using commercial spray
materials.
Unfavorable weather at blooming time often prevents pollination.
Instances of cross-incompatability occurring between the varieties grown
in this state are practically unknown. Late spring frosts sometimes kill
the male or female flowers or both.
The pecan in South Carolina is subject to attack by numerous insects and
diseases, just as it is in other places. Scab is the worst offender.
Several species of borers are found attacking the trunks, the twig
girdler severing the tips of twigs, the shuck worm and case-bearer
affecting the husk, and the pecan weevil affecting the nuts. Many of the
trees growing in South Carolina are not planted in sufficiently large
groves to justify the expenditure necessary for spray equipment.
Contract spraying has been done to some extent and has possibilities in
South Carolina. Where the number of trees is small this will be the only
way in which
|