The Monte Vista journal., 1917-07-14
|rpoRT OF COUNTY AGRICUL.
TrRAL AGENT to the Directors
of The Rio. Grande County Farm
Bureau, Tuesday, July 10th.

Rureau, Tuesday, July 10th.
This report covers the work for
week beginning June 11th, to the
eek ending July 7th, being the
riod of work since the last regular
eeting of the Board of Directors.
Professor C. r. Jones of the Colo
do State Experiment Station, res
nded to the request for help in
ntroling the cutworm trouble
hich had been reported from a few
rtions of the county. Mr. Jones
ent the greater part of week
re and went into the situation
ry carefully. A poisoned brar
xture similar to the one used for
asshoppers with the exception
at the lemons were omitted) was
ed as the basis of this work This
ison was put out in several places
d observations made from time tC
he as to its effectiveness. In one
Id repeated screenings were made
square yard at one place and
ne AZ cut-worms to the square
I'd. There were a few alfalfa
lnts in this field, and from around
of these plants 112 cut-worms
re removed. Several strips were
sOned through this field and
liked for observation. Twenty
pr hours after applying the poison
Jennings Of a square yard each
Re made in several locations and
average of this showed So per
It of the worms present were dead
rty-eight hours after application
the poison screenings were made
the same locations and this gave
average of little over 67 per
It dead. The live worms from
first days screenings were put
box of dirt for observation the
lowing day. This observation
pwed little over SO per cent of
Fse to be dead twenty-four hours
er being put in the box, which
|aht that they had eaten some Of
poison at the time of screening
Pdence of the moving about of the
worms was shown by the fact
i dead worms were found on the
lace 10 to 80 feet from the line
poisoning. Only a very small pei
OF the dead worms in the pois-
~ area were found on the surface
'he ground. Screenings were
|ue each day in adjacent unpois
~ areas which always showed the
runs active and working, with the
ep'oh OF an occasional dead
Ill picked up on the surface wher
Se areas were within 80 feet of
soned area.
:" eHoft was made to determine
'ohg 1t took to kill the cut
MS oy nooding. Cut-worms were
merged in irrigation water for
'ouS periods up to five hours, and
''' cases, after ten to twenty min.
'"o worms were fully recovered
worms which had been removed
u we water We're placed in both
Neu places and in the direct sun.
' seemed to be no difference
'a'n case they were soon recover
IL lett alone proceeded to
themselves in the ground
10 no question but what flood
'P' control the cut-worm, but
Is question as to how this is
s"' about. Undoubtedly one
s,- VI control is the fact that the
pu'ng brings the worms to tbe sur-
1"u the birds pick up large
Vi them before they again
> wv INTO the ground. Flooding
a a'oo cause the worms to scatter
O ieaVe that portion of the
%. 'oneS recommended that the
s method should be used as
sru, cut-worms appeared in
mia s' In this case the worms
sv O,'eh be found in smaller
s,n" u 'he poisoning would not be
snr "penSive. At this time of the
'"e cut-worms have scattered
son," e entire field making the
10, , rather too expensive. An.
also has bearing on the