PEST CONTROL
UNIT
5 – PEST CONTROL
A.
AREAS OF INFESTATION
B.
PREVENTION MEASURES
C.
CONTROL AND ERADICATION MEASURES
PEST
CONTROL
Pests: Under ordinary
conditions of nature, any creature, it may be animal, insect or plant, can only
exist in such numbers as can succeed in evading natural enemies, in finding
adequate food supply and in securing shelter and suitable conditions for
breeding. If these conditions be disturbed, there is immediate response in the
survival rate-up or down. As the case may be, and in general it is only when
the favourable factors-sometimes quite obscure and therefore, difficult to
counter act-become excessive that the creature develops into a pest.
These considerations lead
to an obvious deduction that if favourable factors can be traced and either
removed or counter balanced with unfavourable conditions introduced by human
agency, a fair amount of control over the pest would soon be obtained, and this
is exactly what is aimed in scientific pest destruction.
A Pest is an organism
that competes with human, animals for food and water, damages structure,
transmits diseases to humans’ wildlife
and annoys humans.
TYPES
OF PESTS-
·
INSECTS-COCKROACH,
TERMITE, ,BEETLE, FLEAS
·
ANTHROPODS-SPIDER,
ANTS. TICKS
·
RODENTS-RAT
,MICE
·
MICROBIAL
ORGANISMS – BACTERIA
NOTE – A Species may be a
pest in some situations and not in others.
CATEGORIES
OF PESTS-
·
CONTINUOUS-Always
present and require regular control
·
CYCLICAL/
Sporadic - Which require control
occasionally
·
POTENTIAL-Do
not require control under normal conditions but may require control in certain
circumstances.
REASONS
FOR PEST CONTROL
1.
Guests
set annoyed and horrified. They fear that the area may be dirty.
2.
Impression
of the hotel.
3.
Deterioration
of the property.
4.
Diseases.
PEST CONTROL GOALS /
methods–
a.
Prevention
– keeping a pest from becoming a problem.
b.
Suppression
– reducing pest numbers or damage to an acceptable level.
c.
Eradication
– destroying an entire pest population.
Note – Threshold Level: These are the
levels of pest population beyond which pest control action should be taken to
prevent the pest in an area from causing unacceptable injury or harm. These are
also known as “Action Threshold”.
GENERAL
PREVENTIVE MEASURES
1.
A
clean well ventilated environment cuts down possibility of pests.
2.
Remove
waste as early as possible.
3.
Periodic
and spring cleaning.
4.
Good
building maintenance.
5.
Eliminating
potential breeding sites
6.
Pest
control
- Self
- On
contract-Usually hotels hire professional pest control companies on
service contract. These companies visit the premises on a regular basis
and check for any problem areas and take preventive measures.
7.
Frequency
of pest control
a.
Alternate
days – spraying of insecticides – open areas
b.
Fortnightly
–spraying of insecticide - In front of
the house, back of the house and floors
c.
Once
in six months/ year – Fumigation – entire areas including rooms and kitchens
d.
If
at any time there are signs of infestation special treatment is done in the
specified area to prevent its spread.
8.
Flies,
mosquitoes, ants and moths can be killed with spray insecticides. This can be
done when guest is not there in the room and well before service in bars and
restaurants. Entry to these is also prevented by double doors at all entrances
and exits. Also use of air curtains.
9.
Spray
of special insecticides against flying and crashing insects.
10. Fumigation at
regular intervals eliminate the pest
11. Against mosquitoes
there are small electric machines which heat up; a special tablet placed on it
gives off a vapour that kills them.
12. On terraces, one
can use mosquito coils.
13. Curtain open air
restaurants supply a spray which one can spray on legs or arms to deter
mosquitoes.
14. Hotels with large
gardens usually spray the garden areas against flies in the morning and against
the mosquitoes in the evening.
TYPE,
CLASS, HABITS AND LIFE STYLE
1.
Cockroach (Insect)
- 2 types:
i.
German
- little smaller and has a yellowish brown colour. Climbs smooth vertical
surfaces and prefers warmer, humid environment. Found in kitchens, larders and
restaurants
ii.
Oriental
- larger and of dark brown colour. Found in cooler areas. Found in Dust Bins,
Garbage Area, bathrooms, toilets and sinks
- Nocturnal insects , Live and breed in very warm,
moist and dark places
- Prefer sweet
and sticky food but will attack most foods, often paper and clothing.
- Health
hazard-Carriers of Salmonella. spread dysentery and gastroenteritis
- Life style
Ø Female lays 8
purse like egg cases at monthly intervals. Each egg case is hard and has about
30 eggs.
Ø 2-12 weeks later –
Nymphs
Ø Nymphs moult5 - 10
times to mature into adult
Ø Adult life 4 – 8
months
- Signs of
infestation
Ø Small black spots
specially under the wardrobe/ drawer liners.
Ø Cockroaches
visible specially at night
Ø Dead cockroach
body
Ø Broken body parts
Factors Influencing Infestation
- Poor
standards of cleanliness. Not ensuring that all waste food is removed.
- Food stored
incorrectly.
- Poor standards
of cleanliness in food stores.
- Structure of
food store permits entry of pests.
- Waste food
stored incorrectly.
- Poor
standards of cleanliness in work and storage area.
- Structure of
waste storage permits entry of pests.
Preventive
Measures
- Timely cleaning
of sinks,
- Dustbins should be covered,
- Proper
disposal of garbage
- Wooden
surface must be polished,
- Food stored in sealed containers,
- Any water
leaks, such as dripping taps. should also be repaired
- It is also
helpful to seal off any entry points. such as holes around baseboards, in
between kitchen cabinets, pipes, doors, and windows with some steel wool
or copper mesh and some cement, putty .
Methods
of control and eradication
- Regular
thorough cleaning ensures that all waste food is removed.
- Infested food
must be thrown out
- Store food in
closed containers.
- Clean food
stores correctly.
- Food stores
should be built to exclude pests.
- Waste food
should be stored in closed containers.
- Clean the
waste store area correctly.
- Waste stores
should be built to exclude pests.
- When severe
infestation, seek specialist help.
- If
infestation occurs treat with insecticidal dusts and lacquers.
- Typical
insecticides used include Deildrin, Chlordane, Fenctrothian,
Diajinon or Dioxacass.
2.
Flies (Insect)
a.
Flies
are well adapted for aerial movement, and typically have short and streamlined
bodies.
b.
There
are a large number of different types. The most common are the housefly and
blowflies (green and blue bottles).
c.
Feed
on dead and decaying vegetable and animal matter excrement etc. By secreting
digestive juices into food and then sucking up the partly digested food.
d.
Areas
of Infestation – Uncovered food items, moist surfaces, garbage, uncovered
dustbins
e.
Signs
of infestation
Ø Dead/ live bodies
lying around
Ø Brown stains on
the floor
Ø Larvae in dark
corners
Factors Influencing Infestation
- As for
cockroach.
- Infestation
as such is not usually a problem. The number of flies in urban environment
is decreased due to improved refuse and sewage disposal.
Preventive measures
- Food items should be kept covered
- Surfaces
should be kept dry
- Proper
disposal of garbage
- Dustbins
should be covered
- Entry to
these is also prevented by double doors at all entrances and exits.
- Also use of
air curtains.
- Hotels with
large gardens usually spray the garden areas against flies in the morning
and against the mosquitoes in the evening.
- Destroy all
breeding grounds early in the year before egg laying begins.
Methods of Control
- As for
cockroach.
- Phenyl can be used for cleaning of
surfaces.
- Burn off
garbage. Dustbin should be properly washed and disinfected
- Insecticidal
sprays but not in food areas. Many sprays contain pyrethrum or pyrethrins
(allethrin)
- Numbers can
be reduced by covering windows and ventilators with gauze.
- Ultra-violet
electric insect killer. E.g. insectocutors.
- For exteriors
– glue traps
- To trap and
kill
3.
Silver Fish (Insect)
- A wingless
insect, silver grey, 1cm long and look like minute fish without fins
- Nocturnal insects
found in moist areas
- Feeds on
cellulose and starchy material. E.g. paste, wall paper, books, cotton or
rayon clothing, debris and remains of starchy food.
- Occur in
drawers, cupboards and around drains and sinks.
Factors Influencing Infestation
- Irregular
cleaning of cupboards and drawers.
Preventive measures
- Pyrethrum and
sodium fluoride crystals are effective.
- These can be
prevented by regular cleaning of cupboards and area surrounding sinks and
pipe.
Methods of Control
- Clean
cupboards and drawers regularly.
- Infestation
is rarely a problem but can be dealt with by the use of an insecticidal
spray or powder.
4.
Moths (Insect)
- Moths prefer
shade, a temp. of about 20°c- 30°c and soiled
areas of fabric.
- These are
pale brown in colour and are seen between June and October
- Moths will
attack natural fibre blankets, bedding, quilts, carpets, under felt,
upholstery, curtains, stuffed animals and birds.
Factors Influencing Infestation
- Linen and
curtains not cleaned before storage.
- Insufficient
inspection of stored linen and curtains.
- Failure to
use a repellent if not already treated.
- Insufficient
cleaning and inspection of carpets and upholstery, particularly carpet
edges.
Preventive measures
- Naphthalene,
camphor and insecticides containing pyrethrum can be used.
- Use man made
fabric
- Natural
fabrics can be treated with anti moth finish
Methods of Control
- Cleaning of
linen and curtains before storage.
- Regular
inspection of stored linen and curtains.
- Use of
repellent. E.g. Para dichlorobenzene crystals.
- Regular
vacuuming of carpets and upholstery.
- Occasional
special cleaning of carpets and upholstery.
- If attack
occurs, thorough cleaning is required. This involves cleaning both sides
of carpets and upholstery. Then subject to heat treatment or a general
insecticide.
5.
Biscuit beetle
a. Colour - brown
with a dense layer of yellow hairs on their body,
b. Adults are 2 - 3mm
long.
c. They attack cereal products
d. Sign of
infestation
Ø
Visible
in cereals and food grains
Ø
Powdery
/ lumpy cereals and grains
e. Life cycle –
Ø
In
a 3-week period, the female biscuit beetle lays about100 eggs in or around
foodstuffs.
Ø
Between
temperatures of 19°C and 24°C, these hatch to produce very small and active
larvae that wander around infesting foodstuffs, sometimes even penetrating
packaging.
Ø
The
larvae moult four times and reach a length of 5 mm.
Ø
They
become incapable of movement and construct cocoons.
Ø
Turn
to adults in 9-18 days,
Ø
The
adult beetles do not eat; live for 3-4 weeks, during which time they will breed
and lay more eggs.
Ø
6.
Carpet Beetle (Insect)
- Two types:
i.
Black
ii.
Varied
Carpet Beetle – brown in colour
- Grubs known
as “woolly bears” are responsible for damage.
- Carpet beetle
attacks fur, carpet, woollen textile
- Size – 2-4mm
with a convex body
- Found beneath
carpets, in wardrobes, and on
articles made from fur, feather, hair and wool
- Hairy larva
called WOOLY BEAR – 5mm long
- Sign of
infestation
Ø Visible larva/
adult
Ø Fabric spoilt with
holes/ fraying
- Life cycle
Ø Eggs - Warm, dry
sites,50-100
Ø Larvae - small,
covered in brown hairs, and tend to roll up when disturbed. Larva cause considerable damage.
Ø Adult do not eat
only breed and die
Factors Influencing Infestation
- Failure to
inspect and clean carpets on a regular basis, particularly edges.
- Flourish in
situations where they can remain undisturbed-for example, beneath carpets,
around skirting boards, and in wardrobes.
Preventive methods
- Regular
cleaning of spilled food or lint will eliminate any site for potential
breeding.
Methods of Control
- Vacuum
regularly.
- Use
insecticide powder – spray in the affected area
- Special
cleaning occasionally.
- Pyrethroid
insecticide may be used.
- If an attack
occurs, treat for it like moths.
7.
Wood Worm (Insect)
- Commonly
called furniture beetle
- Makes its
home in crevices and cracks of furniture made of unpolished wood.
- Sign of
infestation - Small piles of yellowish bore dust under furniture
- Life cycle
Ø The female lays
about 20-60 eggs,
Ø Larva or ‘grub’
that is responsible for the actual damage to the furniture, as they are
voracious eaters.
Ø Pupa in wood.
Ø Adult makes an
exit hole of about 0.15 cm to free itself.
Factors Influencing Infestation
- Unpolished or
cracked woodwork.
- Sapwood, used
in many modern buildings is susceptible to attack.
Preventive measures
- Unpolished
wood should be treated with commercial anti-wood worm polish, varnish or
lacquer
- Infestation
can be controlled by application of insecticides to affected area. The
best time to apply insecticides to wood is around March to May, when the
insects are near the surface of the wood
- By professional
fumigation
- Repeat the
treatment every year until signs of infestation disappear ( since life
cycle is 1 year )
- Last stage is
to burn or destroy infected timber
so as to prevent other wooden articles
Methods of Control
- Regular
polishing of all wooden surfaces.
- Checking and
making good cracks in woodwork.
- Careful
selection of building timber.
- A mild
infestation can be dealt with by using a specialist preparation. E.g. cuprinol.
It is necessary to thoroughly treat not only the area where wood worm
holes are visible but also to the adjacent timbers.
- Specialist
advice is essential for major infestation.
8.
Ant (Insect)
- Two types of
ants occur in buildings:
i.
Garden
Ants
ii.
Pharaoh’s
Ants
b.
Organisms
which cause disease. They are a health hazard in hospitals, moving from soiled
dressings to sterile equipment, dressing or food. They are known to carry
pseudomonas SP, E. Cow, C. Perfringens.
Factors Influencing Infestation
- Poor
standards of cleanliness.
- Careless
removal of waste food.
- Cracks,
crevices and defects in walls and floors provide nesting sites.
Methods of Control
- Maintain high
standards of cleanliness.
- Remove every
item of waste food including crumbs.
- Check and
maintain structure of building regularly.
- If
infestation occurs treat nests of garden ants with boiled water, malathion,
paraffin or lindens.
- When
infestation of pharaoh’s ants occurs, there will be many nests which need
to be treated systematically. Treatment should start beyond the infested
area. Blends of insecticides should be applied at the junction of the wall
and floor, around pipe exits, sinks, air vents, cracks, pills and on the
underside of cupboard shelves.
- Lacquers
contain dehdrin or sprams containing chlordane are suitable. An alternative
control method is by using poison bait. E.g. chloroecone mixed with an
attractive base such as liver.
8.
Lice (Insect Parasite)
a.
Head
lice are most common.
b.
Head
lice bite and suck blood.
Factors Influencing Infestation
- Poor personal
and environmental hygiene.
- Can be
introduced into situations of high hygiene standards.
Methods of Control
- Infestation
dealt with by the use of special shampoos.
9.
Fleas (insect Parasite)
a.
Able
to jump considerable distance.
b.
Prefer
warmth and darkness.
c.
Bite
and suck blood causing severe irritation.
d.
Transported
to dogs/ cats from grass.
Factors Influencing Infestation
- Introduced
into the building in variety of ways.
Methods of Control
- Infestation
may be dealt with by cleaning followed by fumigation with formaldehyde
and/or heat treatment.
- Specialist
advice should be sought.
10.
Bed Bugs (Insect Parasite)
a.
Tiny
parasitic creatures -. 4-5 mm long and 3 mm wide with a flat head and flat oval
body
b.
Cause
severe irritation, leads to loss of sleep.
c.
Hide
in the crevices of beds, furniture, upholstery, and skirting boards, emerging
when hungry, usually every few days, to feed.
d.
Bed
bugs feed at night, sucking blood from exposed surfaces of the skin ( humans
and other creatures)
e.
Colour
– light brown but after feeding appear purple.
f.
Give
out an unpleasant smell
g.
They
cannot fly.
Signs of infestation
a. Fully fed, bed
bugs can leave small blood stains on sheets or walls as they excrete excess
fluid before returning to their crevices.
b. Unpleasant odour
c. Rashes /
irritation on the skin of occupants
Factors Influencing Infestation
- Introduced
via second hand furniture, clothing, bedding etc.
Methods of Control
- Infestation
may be dealt with as for fleas.
- Pouring
boiling water into crevices is a temporary solution to get rid of bed
bugs.
- A thick
application of kerosene oil emulsion is also effective against bed bugs.
- For
eradication – fumigate the area completely
11. Termites:
a. Termites are
sometimes called "white ants“.
b. These can consume
over 15 pounds of wood in a single week.
c. Areas of
infestation -Because they need lots of moisture, Termites usually live in damp,
dying wood or in houses with leaking plumbing that keeps the wood wet ,Wooden
Surface area
Preventive measures
a.
Use
treated lumber during construction.
b.
Saturate
the furniture with orthodichloro benzine.
c.
Wax
and varnish all wood and coat with linseed oil to cover the pores,
d.
Grains
should be stored at a dry place in air tight containers.
e.
Paper
area should be cleaned timely and treated with disinfectant.
CONTROL MEASURES-
a.
infected
article or part must be immediately removed,
b.
infected
area should be treated with Phenyl solution.
c.
Grains
should be given Sun bath and infested one should be thrown out.
12.
Rats (Rodents)
a.
Gregarious,
will quickly infest.
b.
Live
and breed in warm dark corners with plentiful and easily accessible food and
little disturbance.
c.
Will
cut through walls, floors and burrow and eat their way through sacks, bins,
packets of food.
d.
Contaminate
food with droppings, containing harmful bacteria.
e.
Rats
also carry harmful bacteria on their fur and feet and so transfer them to any
surfaces they travel across.
f.
Rats
carry organisms responsible for food poisoning, dysentery and plague.
g.
They
are usually creatures of habit and use familiar runs.
h.
Signs
of infestation are growing marks, droppings, feet marks in dust or grain.
i.
Rats
breed prolifically.
Factors Influencing Infestation
- As for
cockroach.
Methods of Control
- As for
cockroach.
- Infestation
may be dealt with by trapping, gassing or poisoning.
This is usually most effecting if carried out methodically using suitable
bait. E.g. oatmeal is an
anticoagulant which causes death within a period of 8-10 days or repeated
doses ensure that no other creature may eat bait.
- In the case
of infestation by warfarin-resistant strains of rats, defenacoum or
coumfuryl may be used.
13.
Mice (Rodent)
a.
Smaller
than rats and slender enough to squeeze through holes as small as 6mm in
diameter.
b.
Breed
very fast
c.
As
for rats infestation is usually on a lesser scale but mice are less predictable
in their habits. Individual traps may be useful but large scale poisoning may
be difficult.
Factors Influencing Infestation/
prevention methods
- As for
cockroach.
Methods of Control
- As for
cockroach.
14.
Dry Rot (Fungus)
a.
Over
a dozen funguses are known to cause deterioration of timber. True dry rot is
caused by one species, merulius lacrymans.
b.
Occurs
in dark damp poorly ventilated areas of woodwork like under floor boards or skirtings
etc.
c.
Cannot
develop in wood containing less than 25% moisture. Optimum moisture content for
growth is 30%-40%.
d.
Spreads
rapidly by means of strands some of which transport water to create ideal
conditions for it to start up on a new site
e.
Recognised
by
Ø its smell
filaments,
Ø red
spores,
Ø look like a mass
of white or grey cotton wool
Ø Cover huge areas
and start looking like a giant pancake
f.
Will
reduce wood to a powdery crumbling state.
g.
May
also penetrate soft brickwork and mortar.
Factors Influencing Infestation
- Faulty
building design or construction.
- Neglect of
maintenance of building.
- Faulty
plumbing.
- Continuous
damp under floor covering and poor ventilation.
- No, or faulty
damp course.
Methods of Control
- High
standards of building design and construction.
- Regular
checking and maintenance of building.
- Correct
plumbing methods.
- Prevention of
damp under floor covering and adequate ventilation.
- Intact damp
course.
- When dry rot
occurs, all rotten wood must be cut away and burned. Affected plaster work
or rendering must be removed. Remaining wood and brickwork must be
thoroughly cleaned and sterilised. Surrounding plaster should be sprayed
with a fungicide before installation. Brickwork and masonry must dry out
before redecoration.
15.
Wet Rot (Fungus)
a.
Wet
rot is often known as “cellar fungus” (conipmora cerebella)
b.
Out
breaks are twice as frequent as dry rot, but less difficult to treat.
c.
Only
occurs in very damp conditions. Optimum water content for growth is 50%-60%.
d.
Found
in kitchens, bathrooms and roofs. Sometimes also on window/ door frames.
e.
Sensitive
to drying so activity ceases when source of moisture is removed.
f.
Recognised
by fungal strands of dark fern like shape on surface of wood or damp
plaster.Affected timber turns dark brown or black.
g.
Wet
rot does not penetrate brickwork.
Factors Influencing Infestation
- Similar to
dry rot but with moister condition.
Methods of Control
- Similar to
dry rot but activity ceases when source of moisture is removed.
- If wet rot
occurs treat by removing cause of dampness and allow timber to dry out.
Only replace timber if wet rot is severe. Cut out and burn any timber
which has suffered surface or subsurface breakdown. Treat now the timber
with fungicide before installation.
- Specialist
advice is available for outbreaks of both dry and wet rots
16 LIZARDS
Factors affecting
infestation
- Presence of
other small insects
Signs of infestation
- Crawling up
the wall
- Faeces-Dark
black oval shaped
Methods of control
- Take away
their food by doing pest control
- Treat the
foundation and landscape around your buildings with cypermethrin(spray
once every 1-2 months)
- One can also
use lizard repellents like garlic, capsicum and other plant oils
- Glue traps
are effective for catching lizards
17
SPIDERS
Factors affecting
infestation
- Presence of
other small insects
Signs of infestation
a.
Cobwebs specially around corners
Methods of control
- Take away
their food by doing pest control
- Seal cracks
in the foundation , gaps around windows and doors to prevent spiders from
coming indoors
- Regular
vacuuming and cleaning of windows, corners of rooms, storage
areas,etc-helps remove spiders and their webs
- Vacuuming
spiders is an effective control technique because their soft bodies cannot
survive this process.
- Most
pesticides don’t work on spiders unless sprayed directly onto the spider
it is easier to crush the spider with a rolled up newspaper or vacuum it.
- To eradicate
spiders SORPTIVE dusts containing amorphous silica gel and pyrethrins can
be applied by professionals
CHEMICALS USED FOR PREVENTlON OF PESTS
CLASSIFICATION OF INSECTICIDES
- Stomach poisoning – the pesticide
enters the body of pests via their mouthpart and digestive system and
causes death by poisoning. Pesticides that function in this way are known
as stomach poison.
- Contact poisoning - the pesticide
enters the body of pests via their skin/epidermis upon contact and causes
death by poisoning. Pesticides that function in this way are known as
contact poison.
- Fumigation/ respiratory insecticides - the pesticide in
gas form enters the body of pests via their respiration system and causes
death by poisoning.
- Systemic action - pesticides
consumed by a host organism will stay in its body fluids. Pests feeding on
the body fluids of the host organism will then be killed by poisoning.
1.
Cockroach- Typical insecticide used including Dieldrin, Chlordane,
Fenctrothian.
2.
Insecticidal sprays containing pyrethrins or pyrethroids.
3.Insecticidal
powder such as Drion Dust.
4.Use
of repellant like Para dichlorobenzene crystals
5.
Carpet Beetle- Use of repellant like Para dichlorobenzene crystals.
6.
Wood Worm- Mild infestation can be dealt by using a specialist preparation like
Cuprlnol
7.
Treat nest of ants with boiling water,Malathion, paraffin.
8.
Flies Infestation can be dealt by cleaning followed by fumigation with
formaldehyde.
9.
Bed Bugs Fumigation with formaldehyde.
10.
Rats and Mice- Infestation can be dealt with warfarin. Defanacoum or coumfuryl
may be used.
Pest
Control Checklist:
- Building / Facility
Ø
Do
windows and doors seat tightly to prevent entry of pests or contaminants?
Ø
Do
windows have screens in good repair to keep out insects?
Ø
Are
there openings of l/4-inch or greater that will allow entry of rodents and
insects?
Ø
Are
drains properly cleaned and free of buildup that may act as an attractant to
rodents and other pests? _
Ø
ls
there sufficient clearance space (six-inch minimum between walls and equipment)
to inhibit rodent activity?
Ø
Are
drain covers in good repair and properly fitted?
- Plants and Garden
Ø
Are
the grounds clear of weeds, tall grass, brush, and debris to minimize cover tor
pests to approach and enter the
facility?
Ø
ls
there standing water on the grounds which may attract pests?
Ø
Are
traps sufficient in number? Well maintained and in good repair?
Ø
Are
there signs of the presence oi rodents or insects’?
- Machinery Equipment and Utensils
Ø
Are
machinery, equipment and utensils properly cleaned and sanitized to eliminate
the build-up of food or other static materials that may act as an attractant to
pests?
Ø
ls
there sufficient space along the process line to allow tor proper cleaning and
sanitizing?
Ø
Are
there any "dead spaces“ which may allow tor the build-up or collection of
food and other debris acting as attractant or harbourage of insects and
bacteria?
Ø
Are
backlight units maintaining the proper light intensity levels to attract flying
insects?
- housekeeping
o
ls
trash, debris and clutter picked up eliminating cover for pests?
o
Are
personnel locker rooms and break rooms cleaned and sanitized to inhibit the
attractions of rodents and other pests? .
o
Are
there signs of rodent, insect, or bird habitation, e g droppings, hair.
feathers. gnaw marks,grease runs from rodent activity along walls? '
o
Have
previously noted indicators of pest habitation been cleaned up in order to note
any new or continued activity?
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