Rats & Mice

Rats and mice are usually regarded as pests only when they move indoors. However, they can also be a significant pest in the garden.

Identify the problem Identify the problem

Rats and mice will readily eat planted bulbs, seeds and seedlings in the garden. Many a vegetable patch has been devastated by the rodents digging up newly planted vegetables.

Compost heaps can be a souse of infestation. Rodents will be attracted to discarded food matter and may nest in the warm conditions found in the compost. It is important to never put cooked food in a compost heap as this will be very attractive to rats and mice.

Rats and mice produce many droppings each day and continually dribble urine, this can be a source of disease for gardeners. If you have grazes or cuts to your skin it is always advisable to wear protective gloves.


To get rid of rats and mice in the garden follow these steps:

  1. Use the Rodent Identification Table to determine whether it is a rat or mouse infestation.
  2. The most efficient and effective way to get rid of rodents is to use toxic baits in conjunction with Kiwicare traps and proofing.
  3. Kiwicare NO Rats & Mice One Feed or NO Rats & Mice Weatherproof Blocks rodenticide bait should be placed at strategic, safe points, around the garden in order to reduce populations and before an infestation can take hold. NO Rats & Mice Weatherproof Blocks and NO Rats & Mice One Feed are well suited to using outside or in damp areas or indoors. NO Rats & Mice Dual Action Bait & Powder is ideal for use in dry areas inside the house or other affected buildings.
  4. Bait Stations - For safety and effective control of rodents use NO Rats One Feed Bait Stations and NO Mice One Feed Bait Stations.
    Snap traps are both safe and effective. They can be used in conjunction with rodent bait or areas where toxic rodenticide cannot be used. How to use traps to catch rats and mice.
  5. An important and often overlooked aspect of controlling rodents; rodents are what we would call agoraphobic, they fear open spaces, and prefer to be under cover. A wide clear area around a building will deter rodents from reaching and entering the building. Also the removal of available food and shelter from within a building can have a powerful deterrent effect.

Did You Know Did You Know

The species of rodent (rats and mice) found in New Zealand are:

  •     The brown rat, Norway Rat or water rat, scientific name - Rattus norvegicus
  •     The roof rat, black rat or ship rat, scientific name - Rattus rattus
  •     The Kiore, polynesian rat scientific name - Rattus exulans
  •     The house mouse, scientific name - Mus musculus

Other signs of rodents include hearing noises from the roof void or walls. There may be other causes. Read this article for help in identifying the cause of such sounds.

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