Milford chronicle., 1928-06-08
FRUIT GROWERS
ADVISED ON COOLING
MOTH CONTROL

For the past six years the fruit
growers in Kent county have re-
ceived each spring notices from the
Office of County Agent Russell e.
Wilson in regard to the emergence
of the adult codling moths in order
that the dates may be determined
for applying the second summer
spray as an effective control for this
insect which is causing consider
able damage to the apple crop in
many sections of the country.
Larvae of the codling moth were
placed in small wire observation
cages this year in the apple orch
ards of Arthur Bowman, H. E. Gov
erdale, F. w. Richardson, H. G.
Richardson, Henry Ridgely, ]. L.
Soper, w. L. Smith, Ernest B.
Raughley, ]. H. Richter, Ed. Todd
and N. w. Taylor. These cages
have been inspected at frequent in
tervals during the past four weeks
by County Agent Wilson and H. G.
Butler, Assistant EntOmolOgist, who
is in charge of the insectary which
was constructed at Camden, early
this spring, for the purpose of con-
ducting life history work on num-
Der of orchard and vineyard insects.
The emergence of adult codling
moths is occurring in some of these
cages, indicating that with the COM
ing of warmer weather the maxi
mum emergence will take place
within a few days, consequently,
the apple growers are being advised
to start their spraying operations
at once in order to have this par
ticular spray completed during the
first week in June.
In the sixth edition of orchard
spray notes, prepared by DR.. ]. F.
Adams, Plant Pathologist of the
University of Delaware and the
State Board of Agriculture, which
accompanied these codling moth no
tees mailed to the growers on June
4, special emphasis was placed on
the Importance of this second sum-
mer spray as a control measure for
this pest, as we'll as for the curcul-
10, and for such diseases as scab,
frog-eye leaf spot, fruit spot, bitter
rot and blOtch, all of which must |
be considered at this time.
For this spray it has been recon-
mended that the growers use the |
dry-mix because it has less possi- |
bilities of burning the foliage or
russeting the fruit than the COM
mercial lime-sulphur. This dry |
mix should be used at the rate of |
80 pounds to 200 gallons of water,
to which should be added pounds
Of arsenate of lead for all late va
rieties of apples, and pounds for
The early varieties: Where growers
continue to use the commercial
Iime-sulphur, however, the strength
can be reduced with safety to IL
gallons to 200 gallons of water,
with the amounts or arsenate of lead
N the same proportions as stated
above, with the addition of 10 lbs.
If lime for all early varieties.
In those orchards where bitter
'ot and apple blotch have been
the growers are ad-
Used to use the Bordeaux Mixture
1t the rate of pounds of copper
ulphate, 5.pounds of hydrated lime
md 2 pounds OF lead arSenate Tor
praying late varieties, and reduc-
ng the amount of lead to 1 IL
POUNDS to so gallons of water for
he early varieties of apples.
These spray notices which were
ent out to all the fruit growers
his week also contained a letter
rom DR.. H. L. Dozier, Entomolog-
st of the Delaware Experiment
itation, in regard to the control
measures for codling moth control,
(which it was stated that the
dult moths lay their eggs from 8
D 10 days after emergence, making
very essential, therefore, that the
pples be thoroughly covered with
he arsenate of lead spray if an eff
ective kill is to be secured when
lese worms hatch and start to eat
heir way into the young fruit.