The Progress. (Shreveport, La.) 1892-1900, 1898-04-02
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THE SAN JOSE SCALE.
Treatment Advised by the EntOmologist
Of the New Jersey Station.

The treatment suggested by J. b.
Smith, entomologist of the New Jersey
station, for the San Jose scale is in
brief: Winter treat badly infested trees
with either soap or kerosene, according
to circumstances, and follow by one,
two or three summer treatments, as
may be found necessary. Whale oil soap
IL safer to trees in average hands than
kerosene and should be used where it is
likely to prove effective for that reason.
Hs makes these suggestions:
When trees and scales are dormant,
the winter treatment is begun. If the
trees are young and not in bearing, with
smooth bark, paint the trunks and
larger branches so far as they can be
reached with whale oil soapsuds, two
pounds in one gallon of water, and put
it on thoroughly. being sure to get an
inch or 80 below the surface to reach
scales at that point. During q dry spell
In January spray the upper parts Of the
trees with . mixture Of the same
strength and again treat the trunk with
the spray. In February or March trim
out carefully and cut every twig and
branch that the tree can safely spare.
The object Of this trimming is to get rid
Of those small spurs and twigs that are
most difficult to wet thoroughly by a
spray and which would be most likely
to harb<r isolated scales.
This 4reat,ne mt will kill all but q very
small percentage Of scales. and some
trees y i'll be G tirely cleared. Thereaft
o. tho kces sh ould be closely watched
IN early June. At about the 10Th Of that
mouth /. very careful search should be
made t.s crawling larvm. Every tree
On viii. even one larva Is seen should
be MA, aed and treated with either whale
oil sos.iA u pound In gallon Of water,
or tho l.. echanical mixture Of kerosene
and water. put ON with an emulsion
spraycr. X the winter aud spring treat
ments V. % carefully made, few trees
should i:.rd one In fall, and one year Of
caref,:i work should clean any orchard
Of young treos from scales.
II the sees are large and in bearing,
= SON. It different practice must OBJ
tain. J.. ,hey are smooth barked, like
certai:, ::.r. apple and plum. the whale
oil soa.,. -:,.s. two pounds in a gallon Of
water, :. Il. be painted in December on
the trc,... urd as far as can be conven-
iently ;, ~. he'd on the main branches. In
Janu..:S Ok February spray the entire
trees with whale oil soap at the rate of
only a ;, .und In a gallon Of water to
avoid i::. ,.ring fruit buds by the stronger
mixture. Tim out carefully in March
or ut 10y ;;:ue during the late winter,
and w., the buds begin to swell treat
the or trees with undiluted kerosene.
All :-..s',.ing should be done at least
. no,. :. lore kerosene Is applied, and
cit crmorel or the finest Nixon
no.4ie sh..uli be used. with sufficient
force l. aud It to make mistlike spray.
Aiwa. .~lect clear. dry day, SO that
the K. nc may evaporate rapidly, and
see tbas 10 trees themselves are dry. If
tho t:c.s -, rough barked or soaly, SO
that no zap mixture will not readily
?, ,-h l '..ts of the surface, use kero-
IL . on the trunks as we'll. The
tsi IL - ;.Jlvantage of penetrating by
J.. Z 3perties, but it should be
4. says i i,..r than painted. so as not
T., set - much. Never put it on SO
Il { l. -: j down the trunk and into
t'.r sd. You will be very apt other
: Ia ,..,i IL dead tree in spring.
&c 49, ii points to be regarded in