The Sidney herald., 1961-05-24

AiA1o ySdI we are going % n
that the weeds and crops are 60
ing to come up together. Already
there are signs of weeds if observ-
ed closely. Most annual weeds.
as well as perennial, are making
their appearance. Most spraying
operations will begin at an earlier
date and should be completed as
soon as possible.
The selective spraying of crops
accomplishes two things. These
are growth control and light kill.
1t must be remembered that the
effective destruction of weeds is
done in the fall. Perennial weeds
sprayed during spring growing
season will get a top burn down
and cannot bear seed, therefore
the infeStation can be held from
seeding anew. However, the roots
can remain alive and continue
producing a plant. Again, heavy
fall spraying will make the best
kiln.
We all know that the combina-
ton with cultivation is necessary.
but by adding weed spraying we
are doubling and TRIPPING our eff
forts.
When using chemical sprays in
field crops, good common sense
and following directions are nee
essary. Wheat and barley should
be sprayed for broadleaf weeds
as close to the 54leaf stage as
possible. At this stage, wheat or
barley is resistant to 2,4-D. Do
not spray these grains in the
boot or Shot-blade to the flower
ing stage, or at the Seeding
stage. Oats are more sensitive O
2,4-D than wheat or barley. In
jury to oats can be expected at
any time when sprayed with 2,4+D.
Oats are more tolerant to MCPA
than 2,4-D. Use the anime formu-
latiOnS of 2,4-D or MCPA.
Flax may be treated With 2,4-D
anime from the time the flax is
two inches high until it is five
or six inches high. There may be
a sight delaying action on the
flax, but it will come out of it
and make a better crop than if it
were competing with weeds.
Weeds will reduce flax yields at
least 25 percent. Ester formu-
lations should not be used. Do
not use 2,4-D on yellow varieties
of flax. Great damage will result.
The flax will bear seed, but it
will be so short it cannot be har-
vested. All brown varieties can be
sprayed. Flax should not be for
gotten as a crop because of weeds.
SafflOWer is a new crop in Mon
tana. Chemical weed control has
been done on an experimental ba-
sis and more information is need
ed before field trials are made.
Here again, it should be seeded
on clean ground and good cultur-
al practices employed.
Corn may be sprayed with
2,4-D. 1t is susceptible but not at
rates of ~ pound per acre or less.
Use the 2,4-D anime formulation.
Ester foundations can be used,
but not after or during the hot
weather season - IS degrees or
above. Other chemicals are avail
able and perform we'll. These are
Simazine, Atrazine, Randox and
RandoX T. Further details are
available on request.
Using herbicides on sugar beets
has been tested, but only a few
show promise. Dalapon may be
used to control annual grasses.
Apply after emergence, but before
grasses and wild oats are UP.
Rroadleaf weeds are not control
led. Endothal has shown promise
in controlling many types of
weeds. Apply ahead of seeding
and mix into the soil. 1t can De
applied in bands. AS most beets
are now seeded, these applications
are just Informative. Rates are
available. Wild oats take more
money away from producers than
is realized. Two chemicals are
now available for Selectively kill
ing wild oats in wheat and barley
as well as in many other grains.
There r Carbyne and Avadex.
These are new chemicals. They
have been tried and tested and
are successful. Control of wild
oats can reach SO percent the