Noogoora bur is already here but we’re working to get rid of it.
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Noogoora bur grows to between 1.5-3m high, with a deep taproot and extensive root system. Noogoora bur is a serious threat to crops and pastures. It grows rapidly over late spring and summer germinating quickly after rain. Its prickly burs attach to livestock causing discomfort or injury. Burs caught in cattle hooves can also result in irritation and infection. Burs can damage sheep’s wool, lowering its value. Noogoora bur seedlings and seeds are poisonous to livestock (particularly cattle and pigs), horses and poultry. It can also cause dermatitis in humans and animals.
Noogoora bur’s rapid growth means it can out-compete pastures and crops. Plants die down in late autumn but most stems remain standing, bearing mature burs for many months.
Noogoora bur is spread by seed contaminating agricultural machinery and crops and by becoming attached to livestock or clothing. It has appeared recently in the Waikato region in maize cropping land in Matamata-Piako and Waipa districts. Infestations found in the Bay of Plenty region have the potential to spread into the Waikato.
It generally occurs in cropping paddocks or paddocks that have been cultivated but could establish anywhere soil has been disturbed, along waterways or roadsides.
Weeds which can appear similar to Noogoora bur but are common in the region include:
Noogoora bur is an erect summer annual growing to 2.5m high but more usually about 1m high.
Waikato Regional Council is responsible for the control of Noogoora bur. If you think you’ve seen it, call us.
Waikato Regional Council is responsible for controlling Noogoora bur – do not attempt to remove it yourself. However, landowners/occupiers are encouraged to report Noogoora bur on their properties and liaise with Waikato Regional Council in areas where control programmes are in place. Noogoora bur is also banned from being sold, propagated, distributed or included in commercial displays.
If you see these weeds on your property, do not cut or treat it. Call 0800 BIOSEC (0800 246 732) to report them to your local biosecurity pest plant officer.
Noogoora bur can spread by soil movement, stock feed and equipment such as diggers, crop harvesting machinery and farm machinery. Take special care not to disturb it or transport it to new sites.
Farmers should protect their properties from Noogoora bur and other serious plant pests by:
For more information about machine hygiene contact the regional council for the Keep it Clean – Machine Hygiene Guideline booklet.
View, download or order the following publications or call our freephone 0800 800 401.