Chew cards are rectangular pieces of plastic corflute that have lure inserted between the layers while WaxTags have a small wax block at one end. Pests will nibble on these devices and are identified through their bite marks.
For home use, both devices are deployed in a similar way:
- Find a location that looks a bit ‘pesty’, such as close to some vegetation, on a fence, by the compost bin or close to a fruit tree.
- Attach the device with a nail about 30cm above the ground. If you have a dog that may interfere with it, attach it higher up. (Fold chew cards as shown in the photo before attaching).
- Check the device regularly and note any interference. These devices can stay out for a month or longer.
It may be difficult to determine what species interfered with your device, but there are some very good sources of information to help you online.
If you are still unable to determine what nibbled your chew card or WaxTag, please get in touch with the Northland Regional Council.
If you want to determine the relative abundance of pests in forested areas using these devices, please consult the established protocols or talk to us about your monitoring plan.
Chew cards and WaxTags are both inexpensive – please contact the Northland Regional Council if you would like to purchase some.