The Holly chieftain., 1909-04-02
CHRONOLOGICAL DEPARTMENT
OF THE COLORADO AeRl-
CULTURAL COLLEGE.
RESULTS OF ITS WORK
CONTROLS INSPECTION OF ORCH.
ARDS AND NURSERY STOCK
OF THE STATE.

The chief work of the entomologis,s
of the Colorado Agricultural College
end Experiment Station Is the study
CT insect pests injurious to orchards,
gardens, field crops and farm animals
cLd of practical methods Of controlling
them and OF reducing the enormous
losses which they cause.
Prof. c. P. Gillette Is at the head of
this work and is assisted by three men
and one woman. The building cost
$4,000, the apparatus, collections and
supplies are valued at S13.037, and it
cost $16,5G4 to operate the department
fer the two years ending November
80. 1908.
Professor Gillette has been with the
college eighteen years. His first work
was in developing practical methods
of combating the codling moth, an in
sect that if left alone would destroy at
least three-fourths of the entire apple
crop of the state. He and his assist
arts have continued the work against
this insect up to the present time.
Special effort has been made to re-
{, ce the cost necessary to combat the
codling moth and to increase the eff
clency of spraying. The work Of the
entomologist and chemist OF the Colo
RADIO Agricultural College will enable
Colorado fruit growers to save this
year $4,000 in controlling this pest
and at the same time secure better
results.
The next most serious orchard pest
is plant lice and the department has
developed practical methods of com
Lattiag this enemy and has secured
general adoption Of these methods by
the fruit growers of the state.
A prominent Canon City fruit grow
ei stated that the advice given by
Professor Gillette had been worth TO
the fruit growers of Canon City alone
100000. Other fruit growers agreed
with him and the work has been pro
I, rtionately valuable to the orchard
men of the Western slope.
Thirty-four bulletins on insects have
teen issued treating Of insects injuri-
Gus to orchards, gardens, field crops
and animals; also OF bee.keeping. The
dip perfected by this department to
cure sheep scab is in general use
throughout the world and is known as
the Fort Collins dip.
Glasses are taught in entomology,
zoology, histology, animal parasites
end human physiology, and the enroll.
Elent In all classes for the year ending
March l, 1909, was 294.
Four students from this department
are heads of departments In other ag-
ricultural institutions and five are in
tfe chronological work of the govern
ment. All are making good"
There are 10000 specimens in the
economic museum, the most complete
collection II Colorado fauna, and the
collection is in constant use, for refer
ence in solving practical problems.
Professor Gillette is state entomol
ogist and has control Of the work of
Inspection of the orchards and nursery
stock Of the state and of all nursery
stock shipped in. This inspection is
to prevent the introduction and spread
ct insects and plant diseases.
Investigation is being continued on
the codling moth and the plant lice
Investigations are also in progress to
determine practical methods of com.
batting the flea beetle and the plant
lice affecting sugar beets. The flea
beetle causes an average annual loss
Or half a million dollars to the pota-
tees OF the state and the plant lice
causes reduction in the sugar con-
tents and a large reduction in the
y'eld per acre of the sugar beet.