Find out what’s lurking in your backyard with the Predator-Free Discovery Kit. Easy-to-use rodent detection chew cards are specifically designed to detect small mammalian pests, principally rodents but also possums and other pest species.
These images are direct links to retailer's product page.
Content contains peanuts.
Warning! Contains peanuts
Place a rodent detector card in your backyard, where you think rodents or other small mammal pests might be active. These can be folded in half and nailed to a tree, fence, or secured anywhere the card will stay in place.
The cards contain a peanut based, non-toxic lure to attract rodents (and possums). If rodents are present, they’ll chew on the cards, leaving bite marks. The bite marks will help you identify what type of rodent it is. Make sure you monitor the card every few days to see if there has been any activity. Once you have confirmation of rat or mice activity you can set up your bait station and/or traps in the right area.
Possums – tend to crush the core flute to squeeze the lure out. Teeth marks are broad curves 4.5-7mm wide.
Rats – tend to gnaw through the core flute leaving jagged edges. Teeth marks are about 2mm wide.
Mice – tend to gnaw lines up the channels of the core flute. Teeth marks are about 1mm wide.
Hedgehog – If hedgehogs are to be detected the cards should be located close to the ground. Hedgehogs typically crush the edge of the cards. Teeth marks are pairs of indentations about 4mm apart.
Interpretation: See a summary of Pest Detection Chew Card Interpretations for more detailed information and interpretation of marks from other animals.
Note: There are some insects and other invertebrates that may leave very ragged edges and eat along the core flute channels on a very fine scale, unlike the much smoother profile produced by mice.
7 If you are unable to identify the animal with confidence you can send clear photographs of the marks to email@example.com.
Already know what you want?
Find your closest retailer.