The Yakima herald. [volume] (North Yakima, W.T. [Wash.]) 1889-1914, 1911-06-28
APPLE ROSETTE.
AND ITS CAUSE
Paul G. Kruger Discusses Trouble
Which Is Giving Orchardists
Considerable Worry
LACK OF NUTRITION IS
THE SPECIAL AILMENT

Cover Crop Of Some Sort Mus,
Be Provided and in Making the
Selection There Is Chance 70,
Wide Range of Choice
Apple rosette or blight. is called sc
because of the bouquet-like appear.
ance on the top end OF the twig oi
limb. Why it should be called ro.
settle l do not know as its appear.
ance has no sem blance to a bsdg,
as the word rosette would indica q
This condition exists consideraol,
among the young orchards in wh,cr
blight more or less to great en-
tent.
Lack of Nutrition
To my mind and ] am fully SAT ).
fed on this point, these conditions
are caused from lack of nutrition II
the soil and would naturally be o. :
physiological nature. After a care.
full examination of the soil and other
conditions surrounding these or.
chards thus affected, l have come te
these conclusions:
First-The Gauss of these condi'
tons can be attributed TO the ex'
cessive amount OF lime or gypsum
Second--The presence Of gypsum
beds, or lime beds, underneath or d
4. I /, >
ficient cause of trouble.
Third have also found these
conditions occur on almVial or col
duvial soils which are not undertake
by lime or gypsum beds. In these
cases I found. however, the same ma
terial exist in the soils washed
down from the hills.
The conditions may be- related ir
some way more or less closely to thu
trouble called chloris.
What Caused the Condition
These conditions are caused from
lack of humus in the soil. After :
careful examination of different or
chards | found that the orchardist'
have harvested bountiful crops of po
tstoes, corn, or onions as we'll ~
other crops of this nature between
the rows of trees for the last three
or four years, but have lost entir'
sight of the fact that thereby the!
were robbing the tree of the nutri
ton and humus so much need I'd t.
a healthy young tree In plain word
you rob Peter to pay Paul.
Cover CROP IS
| advocated sons three years ag'
and again last year through the col
umns of the Herald to put cove
crop among the trees. BY putting
in cover crop you will be able t.
restore the conditions of your LIANT
where it belongs. The use Of cove
crops in connection with the grow
ing fruits is closely allied to the fer
tilzar problem, inasmuch as they
are both fundamental factors in sol
fertility. The chief factor governing
the physical condition of the soil
the amount of humus it contains.
Time To Sow Cover Crops
At the last cultivation other thing
being equal is the time to SOW ant
allowing it to remain upon tn
ground until the first working of tn
soil the following spring. Various
fa>tors however will influence thu
details of management. There arr
two cover crops, leguminous anC
non-leguminous,
Leguminous cover crops are vetch
cowpeas, clover (red). Nonlegumi
nous, are such as rye, buckNhesS
rape and the like. IL the soil need
more nitrogen, SOW the leguminou
crop If only to maintain humus us'
the non-leguminous crop. The con
dition of rosette is found to
considerable extent on the Selah ex
tension in which ! also encountered
considerable blight In fact, l. ma!
say the orchards have been neglect
ed from the beginning and the pres
ent owners are getting into the har
ness to make an orchard worthy y
the name. have begun expert
menting in one Of these orchards anC
will later give the results.
summer Pruning BY Experienced
Men
This should be attended to in al
affected orchards and in fact i
would do no harm IL the orchardist
in general took hold of this matter
as il is of great importance. BE care
ful how YOU cut. II you do not IN
derstand how to prune your younI
trees get some one that does or hav'
an expert give YOU few lessons. I
will pay.
II VIII Take the Valley
If the orchar9ist does not TAX
hold of this matter az regarding tn
rosettn (blighD it will he but mat
ter Of a few years before you vii
look upon a desolated orchard AM
face financial ruin.
A word TO the wise is sufficient.
n II T.