C2-Lancaster Farming, Saturday, April 3 1993
Poultry Science
Penn State
Poultry
Pointers
HOW AND
WHEN TO
GET YOUR
IPM PROGRAM
STARTED
Charles W. Pitts
Professor of
Entomology
The most critical time in initiat
ing an integrated pest management
program for layers is in the spring.
The temperature will be increasing
and conditions for fly development
will be optimum.
Many of the high-rise houses
will be scheduled for clean out in
the next several months, so pro
ducers must be ready to attack the
fly control problem in the chicken
houses.
The manure should be spread
and plowed in as soon as possible.
After the house has been cleaned
out and new birds are being put in
place, the producer should develop
a routine for managing the fly
populations.
The following list is a general
guideline for initiating a pest man
agement program in high-rise lay
er houses.
1) After clean out and disinfec
tion, fog the house to kill the
remaining flics.
2) Spray walls with residual
insecticide.
3) Put chickens in.
4) Order pupal parasites. One
parasite for every two chickens.
The parasites should arrive in one
week and then the parasites should
emerge in 5-7 days. Parasites
should be released weekly for 4
weeks. If you have had good
results using Cyromizine (Lar
vadcx), you may want to start feed
ing at the beginning of the cycle;
however, if your results with the
feed through have been question
able, I would wait for research
results on the degree of resistance
of Cyromizine to the house fly in
Pennsylvania.
5) Put up monitoring traps or
spot cards (5x7 inches) to assess
the fly population. At least 10 jugs
or cards should be hung evenly
throughout the pit. Fog when the
number of flics exceeds 250 flics
per trap or 50 spots per card. Do
not spray on the same day you
release parasites. Early fogging is
important early in the life cycle to
keep fly numbers as low as
possible.
6) Develop routine monitoring
schedule for leaky waterers. Good
manure management is essential.
7) Routinely look for larval
development in the manure. If
maggots are found, you can do one
of two things: Shovel maggots into
wheel barrow and take outside and
destroy or spot spray with larvi
cide. Inspection of the pit should
be done at least twice a week for
the first eight weeks or until coning
has occurred and drying of the
manure has begun.
8) Continue all of your monitor
ing chores and fog as needed. This
series of chores, if done regularly,
Capital
legion
/V
z'
records of all pest management
applications as well as the perti
nent management chores that app
ly to pest management. Records of
the number of flies caught in the
monitoring jugs or the number of
spots on the spot cards could prove
to be valuable data if problems
should emerge. These data will
also provide the information
necessary to do a financial analysis
of the pest control costs.
9) Remember that the first 8
weeks of the cycle is the most
important for establishing good fly
control. As the outside tempera
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lure rises and the fans run more, the
belter the manure will dry out.
This, along with other manage
ment techniques, will help reduce
the fly population in the houses
and will set the stage fora good fly
control program for the remainder
of the fly season.
If you need help in conducting
the fly control program, contact
your county agent or the Depart
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(814) 863-7789.
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