Atlanta tri-weekly journal. [volume] (Atlanta, Ga.) 1920-19??, 1921-12-22
Spraying and Fertilizing Pecan
Trees


Trees
S. L. j., Collins, Ca, writes: 1
am growing pecans, and wish to
know when to spray and what to
use. How much and what kind
Of fertilizer should be used?
Among the diseases attacking the
pecan are the rosette, the scab, the
nursery blight, brown leaf spot, ker-
mel spot and crown gall.
!. No very satisfactory method of
treating the rosette has been discov-
cred. 1t has been thought by some
that poverty of the soil is in a meas
ure responsible for this disease. 1t
was believed that the use of lime
and various fertilizing materials
Would overcome this trouble, how
ever, the results obtained to date
are so contradictory that no definite
conclusion can be drawn therefrom.
Pecan trees planted on rich soil and
well cared for seem to be less sub
ject to this disease than others, so
this is an important matter to bear
In mind.
Pecan scab can be controlled to a
certain extent by spraying with Bor-
deaux mixture. Some varieties are
most resistant to it than others.
The nursery blight, which is con-
fined almost altogether to young
trees, can be controlled by the use
of Bordeaux mixture. The same is
true of the brown leaf spot.
Crown gall is a bacterial trouble
which attacks many types of trees.
Be sure that the stock purchased
for planting is free from this trou-
BILE, then no danger or injury may
be anticipated from this source in
the orchard.
Among the pecan insects are the
fall web worm. The first brood APP
pears in May and the second in Au-
gust or September. Go over the
orchard once a week and remove
and destroy the worms. The twig
girdler is another insect which
causes some loss.
Weevils bore into the nuts and
may cause them to fall; at least they
will not develop normally. Hogs
turned into the orchard after the
harvesting is done will destroy many
Of these insects by eating the dam
aged nuts
Borers may be controlled in the
same way as in the case of peach
trees.
The leaf case bearer does some
damage. and is most effectively con-
trolled by spraying arsenate Of lead
during August and the first Of Sep.
TENDER. Use the arsenate of lead
at the rate Of one pound to fifty gal.
Ions Of water, to which, has been
added four pounds of builders lime.
If Seeding pecan trees are expect
ed to come true to the seed they
must be budded. Older trees can be
successfully top-worked. The fun
damental principle of budding and
grating is to get the cambium of
the bud to come in contact with the
canlbium of the tree that is grated.
If you peel off some of the bark you
will understand what is meant by
the cafnbium.
In top-working pecan trees, cut
back the top during the dormant
season and then bud these trees dur
ing June or July.
When a pecan orchard is first set
out on rich land comparatively lit
tie, fertilizer may be needed. Young
trees will require more nitrogen
than those which are older. From
three to twenty pounds of fertilizer
should be used, according to the size
and age and yield made by the tree
and the character of the land on
which it is grown. Commercial fer
tilizer should be in circle around
the trees and not too close to the
roots. A very good formula to use
may be prepared by mixing togeth-
er 1900 pounds of IS per cent acid
phosphate, 400 pounds cottonseed
meal. 100 pounds nitrate Of soda and
100 pounds .muriate of potash.
Growing Wheat After Sweet
Potatoes
J. H. M, Bowman, Ca,
writs& We have heard that
land will not produce wheat
where sweet potatoes were
grown the previous year. Is
this true? The wheat is just up.
What fertilizer should 1 use?
There is no reason why wheat
should not do well on land previously
devoted to sweet potatoes. No doubt
PEACH B. APPl G
p e zEDrJC-70 zsRrcrs