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Rats & mice
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House Mouse, Mus domesticus
House mice are believed to have arrived in Britain around the 10th
Century BC. Mice are common in a wide range of urban and rural
buildings all over Britain. Although mainly an indoor dweller, mice may
live outdoors for part of all of the year. Mice are not, however, found
in sewers.
What do they look like? Mice that are
commonly found in buildings are usually house mice. The fur colour of house micevaries between
light brown and grey. Body length varies between 60-90mm and the tail
can add an additional 100mm. Often the droppings of house mice are black,
rod-shaped and 3-6mm long.
Where do they live? House mice can be found in a wide range of urban and rural buildings,
although it may live for part of the year outdoors. Mice live in nests,
which are often built inside houses, especially during the winter.
Nests are built wherever there is access to a good source of food.
Spaces under the floor and lofts are favoured places for nests, which
are built out of cloth, wool and paper.
The holes that mice create are normally
20-30mm in diameter. Mice are mainly active at night and can be heard
running about as they search for food.
Mice can squeeze through cracks as small as 5mm.
What do they eat? House mice enjoy cereal products, although they will
eat almost anything. Most of the damage they do is by gnawing and
ripping open packets. Mice also foul food with urine and droppings.
Mice will gnaw their way through wood to get to sources of food.
Why are they pests? Mice numbers need to be controlled because:
- Mice eat and can contaminate all types of food.
- Mice can damage and destroy property
- Mice carry diseases that are hazardous to both humans and animals, including typhus, trichinosis, and jaundice (Weils disease)
Signs of mouse infestation
- How can I tell whether my house is infested with mice?
- Signs
of an infestation of mice can include the presence of droppings,
footprints in damp soil or dust, and burrows in the ground.
- Signs of gnawing, for example on food packets
Preventive measures
- Accumulations of waste materials and rubbish can attract mice and makes a warm home.
- Ensure all waste - especially food waste - is disposed of promptly and appropriately.
- Storing
food materials at least 18 inches off the ground to make access harder
and identification of an infestation of mice easier. Products should also be
kept away from walls.
- Food and food waste should be stored in sealed containers, including compost bins.
Control methods:It
is important to get rid of mice quickly before they damage pipe cables
and insulation. There are several ways of controlling mice, including
conventional methods of baiting and trapping, plus the new electronic
alternatives.
1. Baiting
The pestcontrolproducts (PCP) mouse control range includes baits identical to the ones used by professional pest
controllers for tackling mice and rats. Products such as Neosorexa Gold and Mouse Killer II are designed to be highly attractive to rats and mice
specifically (although care should always be taken to place baits where they
cannot be accessed by pets or children). The result of many years of
research and development, they do not result in an instant kill, but rather the mice will usually retreat to their burrows to die.
An all-natural alternative rodent bait for mice is Eradimouse, which contains absolutely no toxic ingredients, and as such eliminates
the risk of poisoning predators which may feed on mice, such as birds
of prey. This method also causes extreme dehydration to the mice,
leading them to retreat to their burrows, where they lapse into a coma
and die.
Rodent baiting guidelines For most effective control, the baits must be the primary food source available to the mice.
- Clear away all other food sources from the area to be treated.
- Foodstuffs should be securely contained in metal, glass, ceramic or hard plastic.
- Bait all areas where activity of rats and mice is seen - particularly along runs and around holes
- Keep bait dry, as wetting may reduce effectiveness
- Continue to bait until mouse activity has completely ceased
- Place (and store) baits carefully, to ensure children and pets cannot get to it
- Wash hands after use
- Always carefully read the label and any other information materials supplied with the baits
2. Traps
Large, robust rodent traps,
can make short work of most rats and mice, and make it easy to locate and
dispose of cadavers.
- Traps should be placed next to walls where mice and rats tend to travel
- 'Break-back' traps such as the Power cat can give a swift kill
- For a humane, non-lethal alternative, the live catch traps catch mice without harming them, for later release
- Traps can be baited with chocolate, biscuit, cereal or peanut butter (except where sold pre-baited)
- Use several traps and examine them daily, removing dead mice and rats as soon as they are discovered
- Although the PCP range is selected for ease of use and reliability, all traps should be handled with care
3. Repellers
Electromagnetic repellers
are a completely humane alternative for tackling mice, which can be effective in
deterring mice and rats from taking up residence within a home or premises. The
range available from pestcontrolproducts is especially selected for
high standards of effectiveness when dealing with mice and rats. In order to harness the deterrent power of
electromagnetism against rats and mice, it is essential to carefully read and
follow the instructions supplied.
Rats : Control Information and Advice
Common rats, Rattus Norvegicus (Norway, sewer or brown rats)Common rats have only been recorded in Britain since early in the 18th
Century. Rats are thought to have been introduced in shipping from Russia.
It is now by far the more abundant of the two species of rats and is widely
distributed in both urban and rural areas. It occurs both indoors, and
outdoors away from human habitation, and is the species often
associated with sewer systems.
Ship rats, Rattus rattus (roof or black rats)Ship rats probably originated in south-east Asia and was thought not to
have reached western Europe until the Middle Ages. Although once the
dominant rat species in this country, ship rats are now rare and
confined mainly to port areas. It may, however, occasionally be found
in some inland towns, especially those linked to ports by canals, and
its range probably continues to contract. In Britain it lives only
indoors.
General information about rats
Rats
are a major hazard to health. They spread many forms of disease, some
of which, such as Weil's Disease, can be fatal to humans. Rats may eat
food that is intended for human consumption, and they often cause
damage to much more, which must then be discarded. Rats (along with mice) also cause
considerable structural damage to woodwork, water pipes, electric
cables, etc., through their habit of gnawing.
Rats can be
found anywhere that offers shelter and food - including sewers. Rats
are efficient burrowers and favour compost heaps and the ground
underneath hedges and sheds where they will dig shallow burrows and
form nests with dry grass and leaves. In houses they will nest in wall
cavities and beneath floorboards. Both species of rats are active
mainly at night, but may be seen in search of food and water during the
day.
The life expectancy of most rats is around one year, during
which time female rats will typically breed five times, producing a
litter averaging between seven and eight each time. Breeding usually
occurs throughout the year but especially in the spring and autumn.
Signs of rat activity
Rats Outdoors:- Chewing or gnawing of any fallen fruit or other food sources
- Burrowing or displacement of loose soil
- Gnawing on timber at the base of doors, sheds and outbuildings
Rats Indoors:- Droppings (approximately 1-2cm in length)
- Chewed food, food packaging or soap
- Displaced fruit and vegetables
- Chewed carpets or floor coverings at the base of doors
Control methods for rats:The
ability of rats to burrow, climb and jump make them difficult to
control, and you may need professional help to deal with an established
colony of rats.
Early or lighter infestation of rats, however, can be addressed in various ways:
1. Baiting rats The pestcontrolproducts
range includes poisons identical to the ones used by professional pest
controllers. These products are designed to be highly attractive to rats and mice
specifically, but care should always be taken to place baits where they
cannot be accessed by pets or children. The result of many years of
research and development, they do not result in an instant kill, but
their effects ensure that the rat is as dehydrated as possible, to
minimise any smell caused by the cadaver.
An all-natural alternative bait for rats is Eradirat,
which contains absolutely no toxic ingredients, and as such eliminates
the risk of poisoning predators which may feed on rats, such as birds
of prey. This method also causes extreme dehydration to the rats,
leading them to retreat to their burrows, where they lapse into a coma
and die.
Rodent baiting guidelines For most effective control, the baits must be the primary food source available to the rats and mice.
- Clear away all other food sources from the area to be treated.
- Foodstuffs should ideally be contained in metal, glass, ceramic or hard plastic.
- Bait all areas where activity of rats and mice is seen - particularly along runs and around holes
- Keep bait dry, as wetting may reduce effectiveness
- Continue to bait until activity of rats and mice has completely ceased
- Always carefully read the label and any other information materials supplied with the baits
2. Traps for rats Large, robust rodent traps, such as the Power cat,
can make short work of most rats, and make it easy to locate and
dispose of the rats cadavers. For a humane, non-lethal alternative, the rat cage trap allows rats to be caught without harming them, for later release.
3. Repellers Electromagnetic repellers
are a completely humane alternative for tackling rats and mice, which can be effective in
deterring rats and mice from taking up residence within a home or premises. The
range available from pestcontrolproducts is especially selected for
high standards of effectiveness. In order to harness the power of
electromagnetism against rats and mice, it is essential to carefully read and
follow the instructions supplied.
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