The Coalville times. [volume] (Coalville, Utah) 1894-1923, 1899-07-28


To the Farmers Review: The term
sun-soald Ia commonly applied to the
destruction OF a part or all Of tho
bark OF the trunk and main branches
of trees upon the sides facing the
south. southeast and southwest. espe-
cislly the last. caused apparently by
tha rays Of the sun. Though most
frequently used In connection with
fruit trees the effects may be ueen upon
shade trees a. well Though the time
or injury n matter still under dis
putc II seems evident that trees may
be injured whenever favorable condl-
lions present themselves. These con
dltions are first. exposed bark. second.
great direct heat from the sun. third,
alternate low temperature and direct
eun heat a. presented during the early
spring Though exposed bark may be
taken A. the fundamental favorable
condition. the sun must strike II d.
rectly In order TO produce this Kind
OF Injury. And this may occur at any
season of the year. In the coolest days
Of winter as well M In the hottest OF
summer. the only difference being that
at the former season the injury Il as
much duo 10 frost AZ TO heat. while In
the latter case Il Is due to the baking
OF the growing tiasuc-the camblum
layer OF underneath the bark
proper.
In the spring the trouble IA mainly
due to alternate freezing and thawlng
especially when unusually warm days
are followed by very cold nights. Since
young trees are readily excited into
growth and since they have not yet
formed protective layers OF dead bark
they are the ones that suffer most I'M
DER these conditions. while older ones
are attacked most frequently during
the summer and tho winter than are
young ones since these latter accom-.
modate themselves more quickly to
changes OF temperature. and are heat
ed through or cooled through. as the
case may be. Large trees become heat
,ed during the winter upon the ex-
posed side only a short distance In
beyond tho center. are slow TO cool
down after sunset and thus keep the
heated southern side pretty warm I'M
I'll the temperature has sunk well
down. AZ this time the temperature
OF the whole trunk IL about equal and
the outside layer as almost suddenly
under the influence OF frost. whether
tho trees be young or old II Is the I'M
aeasonable activity OF the camblum or
.arnwsth l.w.n 0afIa...a A.. f...t 49,
does tho damage during the winter and
the spring. Injuries OF this nature sell
dom occur during the autumn prob
ably because the trees are preparing
for their winter rest and because the
weather conditions are less favorable
10 plant growth than In the spring.
Recent transplanting. overpruning.
lprotracted drouth may often bring
about injuries by sun-scald since such
produce a check upon the upward flow
OF sap and thus allow the growing
layer 10 become over-heated-a dif-
ferent cause but producing practical
ny the same effect sun-scald may.
however. be readily prevented by
shading the bark Ia some way. Boards.
MAnkAN AAA NAANfn AuAn AnN
ground like stakes. or nailed together
like eaves-troughs and tied to the body
OF the tree; hay and straw ropes
wound round tho trunk: screens OF
Hath. etc. are often effectively used
"A cheap and good one may be made
Of rye straw stood upright against the
trunk and held In place by twine This
will last four or Ave years at cost
OF about one cent per tree. And a
attn cheaper one Ia to plant few rye
seeds at the base OF the trunk letting
the stalks stand where they grow.
They will reseed the ground so that
further attention will be unnecessary.
Grating tips OF twigs TO form a shade
IA a good practice aa Ia also the grow
Ing OF n sprout from the base OF tho
trunk as commonly done In Florida
orange orchards. All these are good.
cost little and will prevent serious
loss.
NJ. q. KAiNs