The watchman and southron. [volume] (Sumter, S.C.) 1881-1930, 1900-03-07
REMEDY FOR Seal s
Bulletin l3s of the New jersey

excerimeut station gives valuable
information in It's acconnt ct expe'i
men,s with the uS- of crude petFo-
;eum on tees ,i.at were affected with
scale insects the first trial vas cn
= small tree tha, was SO badly effect
ed that il had been given up 70 DE-,
and tie result was complete das';uc
ton of the scale and the revlvas OF
the tree Il has been pu. on IN the
form Of spray. snd painted on vita
a brush. The following summary
will tell the story
"since January, 1898, nearly 5000
trees of the ordinary orchard f'uiss
other than cherries have been treated
with crude petroleum. either diluted
or mixed with 50 or Is per cent OF
water. The trees varied from stock
lust out of the nursery row to osc
trees in full bearing.
Not a single case OF injury to
any tree treated in winter has been
observed, on the contrary, IN
number Of cases, the oil seems to
have acted as stImulant, and tie
eprayed trees have shown greater
vigor and better foliage than those
uptreated
s.In no case has there been sny
injury 10 fruit or buds, bet on this
point the observations are lncom
plete, no early winter treatments
having been made on bearing or
cbards. Applications made after Jan
IS, have IL no way Iesseaed the crop
of apples and pears the following
year, and applications made IN Aarca
have not injured the fruit buds N
peach and plcm.
Crude petroleum is not suited tor
a summer application, either pure or
Diluted, because Of choking efec: Oh
the foliage and its persistence This
however. increases its value, for
winter work as compared with kero
sene the latter acts at once or no.
at all and evaporates very soon after
it has been applied-in TACT. to avoid
injury, it must be applied 'u such
way as to favor rapid evaporation
Crude oil does not evaporate readily.
it is penetrating, aud if applied With
a brush half way around branch
completely /; it remains as an oily or
greasy surface coating for many
weeks, and no scales can get on the
coating within month of the appli
cation and live
.eIt does not ORDINARILY penetrate
through even the surface layer of
bark: unde, the most favorable Cir
cumstances if the outer layer is
penetrated, the inner layer remains
healthy and there is no progressive
iniory it does pot seem to interfere
with bark functions and young trees
painted with the Gil increased 10
size quite as rapidly as those untreat-
ed
Crude petroleum will kill the per-
nicious scale IN winter whenever IL
comes into sufficient contac, with the
insect 1t is constant lusecticide,
and will not injure what it does not
touch, but, literally applied, it will
soak through the masses of scales, no
matter how densely set, as nothing
else will
"a minor advantage is the fact
that it gives a greasy, brown co'or to
the bark, making it easy to see ex
act'y how thorough the application
has been made !"
The bulletin further says IF it is
put on und;iuted, fine VermoreI
nozzle should be used, not only be-
cause better distribution can be pro
cured in that way, but because OF the
saving of the material It will be
lust as well, however, to use az emnl-
sion sprayer, aud mix from so to IS
per cen, Of water /! will then be
possible to use nozzle of large.
capacity, or better, group OF Yer
morels. and the material can be
applied until everything Is dripping.
A gallon Of emulsion containing 70
,o,> al Will o,;va o ha.tar rons;rcc