Daily capital journal. (Salem, Oregon) 1903-1919, 1915-12-11
MUSHROOM ROOT ROT
IN VALLEY ORCHARDS.
Fruit Inspector Constable
Calls Attention to Really
Serious Disease


In the following article, G. 0. Con-
stable takes up mushroom root rot
which he had noticed in many orchards
during his work this fall and winter
Although the disease is common, he
notes that it is reported more fire.
quently from the northern part of the
willamette valley and from Hood
River.
This article takes up the symptoms
OF the disease. In following article,
Mr.. Constable will discuss measures for
US control.
mushroom Root Rot Of Tree and Small
Fruits
In my inspection work during the fall
and winter have observed in many
orchards the presence OF mushroom
rootrot. on some of the trees, not enough
to indicate great deal OF damage Of
the disease was confined to the individ-
lal tree, put IN the orchards that l am
interested III the disease seems to be
Spreading and Tor this reason L believe
% y''i"'u's's Snoulu pe on 'ne loohout lor
i"Dr IT n
.i.'a, .O,' IL DUES, VI ine Crvson ayr
su,'' ~ iui tGt'se' mas 'ne loiio"lng 10
''I 'no.' 49,
~ W. w slo.iIus " t1e state' IIulV
.ie'9 ai1 "''oVNeu o5 lne ulsease Known
ti, ,usnrooin i iIot 5ot VI crown ROY
~ 4 In I'm isoia.eg 'iees III an orcn'
% ~ ol.vn ePieaus W surlpuIulhs
,' ,'ses' eo' n'ius inleS'eu areas, "hicn en-
~. id' - uet e. e yo%i' NAaiiiina,lo
NY p"9e ~ oliec'o9 'lees IeVetis y
uoUa'oe tGn'itlon IL VI, lne uIuel grouhu
H.nio. Ea,i - tne IIu"n III on laIge roots,
MN" 'g,"D ltI ota1l Ionul|'ons Iiusters VI
tha fn y VIu tha 5oso S.oo' uSoSy uuS oPpeaIl DI5
an VNe ioh "' 'ne p"se Vi sucii Trees VIA
tleIs anu Spuns ole equa,iS lapie 10 at-
~ tLe "nu onse uI'acAeu, tnere ls NJ
~ ~ noPe " '%TlnS 'npnl Aronl ultiniate
49, "o,an u'',on, ", W MY H. tn's ulsease mas
".;Sa; "'9'','eu a AZ tHo onaluV'er VI
- spnoei''ti Set 'n1 l"vs tn"t II IS "ioe
XXX" ".Iusn tno iIultisIowing ols'
ano,,o, o,io,S VI ."e s,ate, constl'utes reason
enGusn en;a loi 's vonsi'ellng y sulllclently
'''iO'' ~ N".I.' 9Peoia' uiScusSion'
., Distribution
Wnile no careful survey has been
made to determine its exact distribu-
tloh' the disease is reported more fire.
Iuentiy from the northern part of the
Mlliamette valley and from the Hood
hlVer valley than from other districts
III the state, aithough IL is known to ex-
ISL elsewhere as common trouble. 1t
also appears destructlvely in western
washington and california, and similar
root rots are reported from the south
ern ana eastern states In Europe this
troup,e mas Deen known for long time,
ana the splendid work done IN Germany
py hartlg Is the basis for most of our
present knowledge regarding the dis
ease
Hosts.
FROM numerous parts OF Europe and
America II is reported that many for
est trees including various eyergreens,
'he plreh, peaeh, walnut and oak, as
wen as such frult trees as the apple,
plum' eherry, peach, citrus and olive,
peslues certain push frut and the
grape, are attacked by very similar, if
nol ldentlcal, mushroom root rots.
Along our racine coast, mushroom root
rot II prevalent on many kinds of trees
ana shrubs In western Washington,
Lawrence reports its presence among
several native trees, both evergreen and
deeelduous, and mentions that in orch
ara ana field the apple, plum, cherry,
gooSeperry' currant, blackberry, rasp-
perry ana loganDerry were found to be
Dadly injured or killed. In California,
horn mas reported that 1t occurs
throughout the state attacking a great
variety OF hosts; He says that il ap-
pears 10 be capable Of attacking almost
any pant IN fact, that is somewhat
woody, ana long,lived. In Oregon no
earetul investigation has been made to
determine TO what extent native forest
trees may De parasltically attacked, but
mushrooms ilke those usually associated
win the orchard disease, are frequently
round arising. from decayed alder
maple OAK pine ana fir trunks, and
lurtner searcn would probably reveal
other xmas erected In regard to. eul
llVateu trees our attention mas been
m9Ie olteh coiieu 10 serious damage re-
suu'ng from attacks on Prlpes and ap'
pes lnah upon other KINDS OF FRUITS,
annougn III some sections the cherry
unu Peaen are oauly erected Ihe wal
nu. slso mas peen round parqsitlzed by