The ranch. [volume] (Seattle, Wash.) 1902-1914, 1904-03-15

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the cause of this disease, If it is not
a fungous growth. He said it comes
from the soil. | asked him how he
knows that to be so, and he gave me
his authority | told him frankly that
his authority is not worth much with
me. Prof. Lawrence, OF Pullman Col
lege, claims, as l understand him, to
have satisfactorily demonstrated thai
the spores from the black spot canker
vii, produce the same disease on d
healthy tree. When his bulletin is out
the reader can see how he handles
that subject. l have not introduced
this subject at this time in order to
discuss it. But l wish to say this,
that any one who thinks that the black
spot canker is not fungous growth
can have the use of the columns OF
this paper to show a different origin
if he can do so. While l do not be-
lieve that this disease comes from the
soil, yet | am willing to have any
one show that it does, if he can. Free
and open discussion is what brings the
truth to the front. If those who oppose
the view maintained by Prof. Lawrence
are willing to advance their best argu-
ments in favor of some other origin,
and we cannot agree, we can submit
the matter to the vegetable patholo-
gists connected with the department.
of agriculture at Washington, d. c.,
and let them pronounce upon the mat
ter. If in that case they get laughed
at it will be no fault of ours.
A valuable horticultural paper says:
"When more than five ounces Of Paris
green is used to fifty gallons of water
it is likely to play havoc with the TO-
liage." This is news to me. For years
we have used eight ounces of Paris
green to the barrel of water, which did
not exceed forty-five gallons. | have
never seen any foliage burned yet. One
of my neighbors used one pound OF
Paris green to the barrel and did not
iniure his foliage. There is miscOn-
ception in the minds Of mesly people
about what burns the foliage when we
spray for the codling moth. Before
we had any law on the subject there
was much free arsenic in the Paris
green sold in this state. Now free
arsenic is soluble in water while Paris
green is not. So it was the free ar
senic that burned the foliage. Our
state law forbids the sale OF Paris
green with more than four per cent
of free, or water soluble arsenic in
it. Prof. Fulmer drew up that part OF
the law and put that feature in it, so
this burning may be avoided. The
writer intends to carry out some ex-
periments the coming summer to de-
termine whether any amount OF pure
Paris green will burn foliage. l de
not believe that it will.
A leading horticulturist speaks of
the apple known as the Mammoth
Black Twig, as also called the par
agon," the Arkansas" or the 'Arkan-
sas Black" Now, l am surprised at
this. The American Pathological So
ciety changed the name of the Nam
moth Black Twig Or Paragon to Ar
kansas. But the Arkansas Black is
an entirely distinct apple. The trees
are not alike. The Black Twig is
spreading tree, while the Arkansas
Black is an upright grower The fruit
is entirely different. The Black Twig
is a fiat apple and ridgy, while the
other is longer and very smooth The
Arkansas Black is by far the more
profitable apple to grow l have them
both and know of what l speak.