The watchman and southron. [volume] (Sumter, S.C.) 1881-1930, 1913-02-19
SAN JOSE SCALE.
Clemson College Extension Work
south Carolina Experiment Station
Press Bulletin No. 1916.

scale must make preparations imme-
diately because the winter lime sui
phur wash or any Of the other sprays
used to kill scale are too strong to use
on trees after the buds have started.
The wash most commonly used in this
state is the concentrated lime sui
phur wash. This may be made at
nome according to detailed formula
furnished by the Division Of Ento-
mology Of Clemson College upon re-
quest 1t is not necessary to repeat it
here because it has been printed in
these columns several times. With
the improvements in the commercial
washes however, in recent years, as
well as the reduction in price, we pre-
fer to recommend the use Of the COM
mercial wash over the homemade
wash The commercial wash Is more
uniform. 1t must be borne in mind,
however. that in purchasing such a
wash 1t should be bought from a house
OF reliable standard. The winter wash
at present costs 13 cents per gallon
in lots Of SO gallons or over, so that
SO gallon barrel Of concentrated
wash can be delivered at points in
South Carolina for between $40 and
$l1. These washes are used at the
rate Of one gallon of commercial wash
to nine gallons of water. The water
may be rain water or well water and
used cold. This spray should be
given just as soon as possible now as
1t cannot be applied after the buds
have started, and in that case it is
practically necessary to let the trees
go untreated as far as scale is con-
cerned until next fall after the leaves
have fallen. In badly infested or
chards where one spray was applied
last fall, it is we'll to repeat it in Feb
ruary before the buds start, and in
applying the spray it cannot be over
emphasized that it must be applied
thoroughly and every part of the
tree covered. 1t is practically impos-
sible to spray a peach tree before it
is pruned. AS peach orchard re-
quires attention every winter in the
way Of pruning, this should be done
before the wash IL applied
10 oil
must be applied with 2 proper equip
ment. For the spraying of fruit
trees, we discourage the use of bucket
or knapsack pumps, and we also dis
| courage the use Of small barrel pumps
1t is immaterial what shaped pump
one may prefer, but the following es-
sentials are necessary to good
equipment in the way Of a barrel
pump: y cylinder IA to 1-2 inch
es In diameter and an air chamber
having a capacity represented by
tube 30 inches long and inches in
diameter This air chamber may
have almost any kind of shape,
but in the terraced orchards Of South
Carolina, it is we'll to purchase a
pump where the air chamber is down
in the barrel. This will prevent the
pump from being top heavy and it
cannot so easily be thrown off Of the
wagon when moving across terraces
or turning at the ends of the rows.
One should purchase % feet of 1-2
inch 3-ply hose, a leakless stop-CoC'l
at the end of the hose, an extension
rod of desired length, usually six TO
eight feet for peach orchards made
of Ia inch iron pipe with threads
made at each end, and an angle noz-
Zle which enables one to spray, even
in a breeze without getting into the
way of the spray. A good barrel
equipment without barrel costs about
SIS. Any coal oil, whiskey or mo-
lasses barrel will do for a spray bar
rel on which these pumps can be fit
ted, because most pumps have the
-'' ''"JN0"'i'' anu loi d very Sill
pie barrel top anyone writing to the
Division of Entomology will receive
an illustration as to how this can be
made. With every pump there comes
a paper disk having a drawing show
ing exactly how the hole is to be cut
to mount the pump perfectly into the
barrel The manufacturers generally
charge about $3.50 for the barrel.
y. +. Conradi, EntomologiSt,
Clemson College, :. c.
Early Vegetables Pay Best.