Pest Control Moray Anderson Technical Director Killgerm Group.
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Transcript of Pest Control Moray Anderson Technical Director Killgerm Group.
![Page 1: Pest Control Moray Anderson Technical Director Killgerm Group.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551bc3e7550346b9588b4c71/html5/thumbnails/1.jpg)
Pest Control
Moray AndersonTechnical DirectorKillgerm Group
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Pest Control
Rodents
Insects
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Pest Control What to look for when auditing premises:
Rodent pests - signs of activity - baiting strategies
Insect pests - signs of activity- potential for disease transfer
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Simple Steps to Effective Auditing
• Pest activity
• Hygiene/housekeeping
• Proofing
• Storage
• Monitoring points
• Fly control units
• Paperwork
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Paperwork.
• Reports…are they clear and accurate?• Routine visits….are they frequent and
evenly spaced?• Follow up visits…. correct intervals?• Pesticides….type and use recorded?• Risk/COSHH assessments carried out?• Signatures….by technician and client?
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FREQUENCYOF RODENT BAITING
• Monthly?• Fortnightly?• Weekly?• Continuous pest
activity needs riddance programmes in place
• Non-infested sites need proofing
• Not just bait checking
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Effective auditing
Pest Activity…….(Infestation?)
“A breeding population of pests in an area where its
presence will be detrimental to humans, their activities or their
health”
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Signs of Activity …Rodents.
• Nests• Damage• Burrows• Contamination• Smell
• Droppings• Smears• Foot prints/tail
swipes
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Nest - mouse
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Nest - rat
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Mouse damage
– Gnawing cables.
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Rat damage
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Burrows
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Bait and mouse droppings.
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Rat droppings
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Footprints/Tail Swipes
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Smears
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Home range…• Rat…Has a large home range, 15-30 metres, but in
rural populations can forage for two or three miles in search of food.
• House mouse…Very territorial, small home range. Typically 3-6 metres.
The common rat has the behavioural characteristic called neophobia.
This neophobic re-action makes them very wary of new objects placed in their territory.
House mice are less “nervous” and will be more likely to explore new objects.
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Monitoring/Control points
Rodent bait boxes
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CONDITION
• Old stale bait• Water-logged bait• Baits damaged by
insects/slugs• Unsuitable bait
containers (spiders’ webs and “wobbly” bait boxes, etc.)
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FORMULATIONS• Vary the products
– Grain bait– Block bait– Soft/pasta bait
OR – Traps– Tack boards– Gels and dusts
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APPLICATION• Cardboard• Plastic• Box• Tray• Loose
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Effective auditing
Insects
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Signs of Activity …Insects.
• Live Insects • Bodies• Damage• Contamination
• Webbing, etc.• Trails in dust• Disease
Check Monitoring Devices where present
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Insect Pests in Food Premises(CIEH booklet)
• Dermestid beetles
– skin feeders• birds nests• dead animals• dog and cat food
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• Larder beetle– Dermestes lardarius
– Life cycle– Egg 2 – 9 days (100 – 700 per
female)– Larva 35 – 80 days– Pupa 8 – 15 days– Adult 18 months
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Insect Pests in Food Premises
• Tribolium confusum, confused flour beetle.Egg 4- 30 days (950)Larva 15 – 98 daysPupa 5 – 22 daysAdult 1.5 yrs
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Houseflies
– The housefly (Musca domestica)
• Mechanical vectors of many different and varied pathogens such as
– bacteria– protozoa– viruses– helminth eggs
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Houseflies
– Outbreak of enterohaemorrhagic colitis – Outbreak occurred in nursery school in
Japan– an epidemiological survey isolated
Escherichia coli O157:H7 (EHEC-O157)• EHEC-O157 isolated from houseflies collected in
the school• EHEC-O157 isolated from patients
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Houseflies
– The bacteria persist for a number of days but also proliferate – how?
– Proliferation of EHEC-O157 takes place on the mouthparts of the fly:
• kept moist by repeated regurgitation of gut contents, saliva and frequent tasting of liquid nutrients.
• labellum provides perfect environment for proliferation of EHEC-O157.
• labellum of flies is usually retracted
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Houseflies
– These results suggest that houseflies are not simple mechanical vectors of EHECO157.
– For this type of transmission, a new technical term, bioenhanced transmission, was coined.
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““Drain”Drain” flies flies • F. Psychodidae Owl midges• F. Sciaridae Fungus flies• F. Drosophilidae Fruit flies• F. Phoridae Scuttle flies• F. Sphaeroceridae Lesser dung
flies• F. Sepsidae