The ranch. [volume] (Seattle, Wash.) 1902-1914, 1907-11-15


the Wenatchee orchards which lost
5000 boxes to the worms last year.
After our four sprayings there were
only five boxes of wormy fruit from
the seven hundred trees. Several adj
jacent orchards, however, lost from
forty to fifty per cent of their fruit,
although they were sprayed in what
their owners thought to be the prop.
manner.
We gave the dust spray another
trial this summer. AT Walla Walla
we busted portion OF the abandoned
orchard mentioned above. The trees
were very wormy at harvest, running
but 90 per cent clear. The adjoining
trees sprayed with arSenate OF lead
mad hardly a worm to a tree. Another
orchard at Walla Walla which pre-
ylously had been very wormy was
sprayed enurely with the dust Spray
unuer our supervision. Tnls orchard
also lost forty per cent Oh It's crop.
Al Wenatchee we aimed TO give the
uust spray lar trial In an experl-
..enIal BLOCK OF trees. we duSteu
various amounts to nnd the OpJ1muln
amount 10 De uSeu. But Wherever
we applied the dust in excess COLI
sIueraD1e porLlOn OF the trult was
ruined. The excessive dust scorcnea
the valyX end OIL the 1rult, often cauS
ing 1t to decay. Tnls may nave been
uue TO the quality OF me Paris green
used, although 1 think 1t resulted from
uoIng too thorough job at the first
spraying. Even those trees that re-
celved as much as ten pounds OF dust
showed almost the only WOrmy apples
70 be found IN the orchard. The 1ur-
ner rancn at WenaUchee is one OF the
prertlest orchards 1 have seen. Mr.
urner sprayed block OF trees with
me dust alone (and by the way USED
me same Paris green we uSed), anu
.ne REMAINDER OIL ms orchard VITA
liquid part OF the time and dust part
OF the time. He has hardly a worm
IN his orchard, the few l noticed being
ON MS busted trees which, however,
we're ~ per cent clean. FROM our on
oerVatlonS l nave the following sug-
5eSLlonS TO make 10 trult growers.
Irst, uonL use the DUST spray IL youi
orcnard mas been IN very Wormy CON
ultlon. Second, be careful not TO ap.
ply over two pounds to medium sizeu
Tree per application.
The reason we have had success IL
these demonstrations lies simply iii
ChoroughneSs, and especially III thor
oughness at the first spraying. 1t IS
imperative that the first spraying be
done on time. To get the most OF the
blossoms poisoned we commence
spraying before all the petals have
dropped. We nave used power spray
ers altogether and spray at from lou
10 zUO pounds pressure. We use the
bordeaux nozzle and have bend at
the end OF the extension rod SO we
can shoot the spray down into eacn
IlOwer. We throw a coarse spray and
continue spraying until the trees drip.
Inasmuch as we use but one pound OF
arsenate of lead to fifty gallons, while
the majority of farmers apply the
spray three times as strong but throw
on only one-third as much, the cost OF
our spraying is no greater than usual
even if the tree drips. The thorough
ness of our first spraying is evident
from the band record this year. Only
$50 worms were taken from the bands
of 700 trees, whereas last year the
band record was almost 100000 -ne
first brood was so everlastingly killed
off that there were no second brood
worms to do harm. Even of the ap-
pies that became wormy less than
one per cent were wormy at the
calyx, demonstrating the thorough
ness of the first application. l have
had abundant opportunity to- inspect
the results of the usual spraying with
Vermorel nozzels and low pressure,
Continued to Page 2S.)
1t is estimated that there are $50
nnn Ix,;4o I