The ranch. [volume] (Seattle, Wash.) 1902-1914, 1904-05-01


| lime wash. l found that the living
insects we're all killed and the I'M
Matched eggs were rendered infertile.
No doubt but this spray would kill
the black aphis mentioned above, but
| it would not be safe to spray cherry
| trees when in bloom with this prepara-
ton. But if the eggs could be coated
with the sulphur-lime spray while the
| tree was dormant | have no doubt but
| the eggs would fail to hatch Prof.
Aldrich, of Idaho, as recently stated
in these columns, found the sulphur
lime spray effectual in destroying the
eggs of aphis.
In pruning our apple trees we should
exercise great care not to have forks,
| Now, by forks are meant single forks
or forks in which there are simply two
prongs. Such forks are apt to split
when the tree is loaded with fruit.
| With all our care there will occasion
ally be a split tree. What shall we do
| in such cases? I have two split trees
| in my orchard, and both are doing
well and stand up under their loads
of fruit quite as we'll as if no accident
| had ever happened to them. l simply
| bolted them. | bored through them
with a three-eighths-inch bit and put
| a bolt through and drew the parts
as tightly together as possible by turn
ing the nut on tight. One of these
| trees was treated in that way some
four or five years ago and today 1t
does not show the effects of the split
| at all. If a tree begins to split with
it's weight of fruit, first tie the limbs
together and then before the next
spring put in a bolt as here described
and the tree will be saved
| AS noted above, spring came on with
a bound about April 10. This is for the
Yakima valley. For about week the
weather was hot. The eggs Of the
green aphis began to hatch out, and
on April Is we found pupae of the
cooling moth under our bands. This
was ten days earlier than they ap-
peared last year. How soon they will
hatch out and the moths appear no
doubt depends on the kind of weather
we shall have AS noted on other oc-
casions, the habits of the cooling moth
depend very largely on the weather.
Last year the first moths to hatch
out made their appearance May 4. Ii
| our weather should continue extremely
| hot we may expect Jnom SOOHor IHlS
year. Eldred Jenne, in his valuable
observations on the codling moth in
the Yakima valley last year, found that
about 80 per cent of the winter larvae
had pupated by May 1. By May 5
about one-half had gone into the pupa
state. 1t must be borne in mind that
the codling moth passes the winter
in the larval state. When they begin
to turn into pupae then we know that
before long they will hatch out and
the moths will begin to lay their eggs.
Just how long the winter larvae will
remain in the pupal state depends
somewhat on the weather. Jenne
found that the average for last year
was % days. The summer pupae last
about half as long as the winter brood.
The cooling moth does so much harm
| that it is a vital question and will
constantly keep coming up for consid-
Grafton. There are good many
things about it that we do not under
stand. There has been too much
guessing about this insect. The day
for that has gone by. In California
the experiment station located at
Berkeley has it's entomologist and be-
sides him there is the field entomol-
ogist. Prof G. w. Wordsworth fills
the first-named position, while Prof.