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Insect Pests

Black Roof Rat (Rattus rattus)

Characteristics: larger rodents may grow to a body length of 25-30cm. seldom will a rat weigh more than 0.45 kg.
Behaviour:  These rats are excellent climbers and are capable of gaining entry through holes around vents and around cables entering the building. Roof rats gnaw anything including rubbers, wood and leather. They are also known to carry disease causing organism.
House Mouse: (Mus musculus)
Characteristics: small, its body rarely exceeding 5cm long and 30g in weight.
Behaviour: they are generally smaller in size compared to rats. Mice are excellent climbers and are capable of gaining entry through holes around vents and around cables entering the building. They contaminate food items and their presence alone is enough to call for a rodent control treatment. They feed unto anything and produce rapidly.

Population Control


Trapping is the safest and most effective method for controlling rats in and around homes, garages, and other structures. Because snap traps can be used over and over, trapping is less costly than poison baits but more labor intensive. Traps can be set and left indefinitely in areas such as attics where rats have been a problem in the past. The simple, wooden rat-size snap trap is the least expensive option, but some people prefer the newer plastic, single-kill rat traps, because they are easier to set and to clean. Snap traps with large plastic treadles are especially effective, but finding the best locations to set traps is often more important than what type of trap is used. Generally, young rats can’t be trapped until they are about a month old, which is when they leave the nest to venture out for food.

Glue Boards

Glue traps, which work on the same principle as flypaper, aren’t recommended for controlling rats, as they are much less effective for rats than for mice. A major drawback with glue boards and other live-catch traps is the trapped rat might not die quickly, and you will need to kill it by delivering a sharp blow to the base of the skull using a sturdy rod or stick. Rats caught in glue traps can struggle for quite some time, often dragging the trap as they try to escape. When used indoors, cats and dogs can get into the glue and track it around the house; outdoors, glue traps can capture lizards, birds, and other nontarget wildlife.

Rodenticides (Toxic Baits)

While trapping is generally recommended for controlling rats indoors, when the number of rats around a building is high, you might need to use toxic baits to achieve adequate control, especially if there is a continuous reinfestation from surrounding areas. If this is the case, consider hiring a licensed pest control applicator who is trained to use rodenticides safely.

Baits to control rodents are formulated with an attractant (generally food) and a rodenticide (toxin). Changes in rodenticide regulations went into effect in mid-2011 in an effort to prevent rodenticide hazards to wildlife and pets and to reduce accidental exposure to children. These federal EPA restrictions now permit manufacturers to produce, for sale to the general public, only wax block, gel, or paste rat and mouse baits that are packaged in ready-to-use, disposable bait stations. Agricultural producers and professional pest control personnel are able to obtain more types of rodenticides in various formulations, some of which are restricted use pesticides.

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