Washington standard. [volume] (Olympia, Wash. Territory) 1860-1921, 1913-08-29
ONE CERTAIN CURE
FOR PEAR BLIGHT
Federal Experts Repeat Advice t.
Cut Diseased Parts
From Trees.

.o,irr by t.l.sr.Ib from citizo,,. f..
..is -iaia. of N..rii..,nr tbat o,.,,..i
,o5,lr ar. e.r.ad5.. ir. idea tha, tI...
lsar llol. il .ot - bacterial di.,......
and r.at. lna d.l,ari,nant,s reco,,,,,,..,,
.latiou Than near blight can he dealt
with lv c,t-il.., ouf fine diseasod n,,..
liam. nf tr.,s il. mn, an ef,octi,.o ,,,'.o.
Irn
In tLe fpar ritat tl,e.e ursoio,,tif,
.,Yfuious may sion orrbardiets fr,n,
f.UuNing the birhIv successful ,r,.
.rical measures recommended nv ,i,a
federal suprialtsfs. and thus lose their
Town orchards ana euroad tho dieo,,o
Iamong ucfghborjug orchards tba do
Iaarlment has issued the following sna-
Icial statements:
THAT near blight is a bacterial die.
ease of the pear tree is not omen 10
question. The scientists have cloarlv
established the existence of these hac.
terra by means of microscopic exami-
nation, and have REPRODUCED the dis.
ease by inoculating fruit and trees
with them. The germ is the baciIlus
aD1ylororas. 1t is an oval sbaped
body and is 1-18.OOO of an inch long
and $4,000 of an inch across and
can be clearly seen with a high mower
microscope.
Moreover, the scientists have rails
ed these bacteria l.. their laboratories
and have used them a large nunber
of times i'm exneriments to infect
healthy trees and fruit. Wherever this
bacillus has been introduced into a
healthy tree or fruit the near blight
has followed. The scientists also have
proved that the pear blight can he
communicated from the blossoms Of
an affected tree to healthy trees nv
bees and other insects and that tho
blight that is held over through the
winter can be communicated to healthy
portions of the same tree mr. IN other
trees by flies or other insects
Pear blight differs radically from
the peach yellows in the way It af.
fects a tree The peach vellows does
not show itself outwa-dlv in a tree
until the entire tree is affected and
cannot be saved. The near blight on
the other hand. has a purely local Of.
feet and attacks ccr.ei, b,orccms |
tw.Ss. 5r.acaes. or a sec.;on If the
bark, and leaves the rest of the tree
uninjured EXCEPT where girdling has
occurred.
"I, Thousands NJ richards ard +,
the case of hundreds of thousands of
pear trees. esDeciallv in California
and OREGON particularlv In tho Mod.
ford district. It has been nroven that
nv cutting ont tho por+;or 80 +ho ..o
affected by the near blight and wash.
ing the cut with a solution of ono mart
of corrosive sublimate IA highly moi
sonous substance) to LOCO narts Of
water. orchardists can save most of
the individual trees and prevent the
spread of the disease throupbont their
orchards. The department tberefore
strongly urges orchardists in districts
affected by near blight TO continue to
cut out affected rortions of the trees
and vasb tho ont With +h,,
In cutting they should wash their too,s
| in this disinfectant. 50 that the fool IT, !
self cannot communicate the bacteria
to helathy parts of the trees Esnac.
ially orchardists are STRONGLY .dvisod
to go cyor their orchards vary cora.
fnllv in the fall and o,,t o,t al, o..
Of hold over b,iobt in ordou 80 -.
the spread of infection in diseased
trees or the communication of infec-
tion to other trees in the blossoming
period.
"In addition to the cutting out and
| diSinfecting process. the denart mont