Restrictions on fruits, vegetables movement in Mt Roskill
Legal controls on the movement of fruits and vegetables are now in place in Auckland’s Mt Roskill suburb, says Biosecurity New Zealand Commissioner North Mike Inglis.
An invasive weed that can reduce water quality and block irrigation systems has been discovered in the Waikato River.
A joint Biosecurity New Zealand and Waikato Regional Council work programme is now underway to remove the small cluster of the pest water hyacinth in the river near Huntly.
The agencies are working together with local iwi to ensure any water hyacinth present is located and safely removed. The team will then coordinate ongoing checks to make sure it hasn't come back.
Biosecurity New Zealand's manager of pest management, John Sanson, says water hyacinth is a rapidly growing water weed that if left, can form dense mats that reduce water quality, crowd out native water plants and animals, block irrigation systems and alter ecosystems.
"In this instance, we've found just 2 individual plants in the slow waters at the edges of the river and 1 plant in a cluster of willows further out into the stream.
"The plants have clearly come from a container of water hyacinth being kept at a private property in Huntly backing onto the river. This container was close to a drain next to the river bank and we believe that's how the plants entered the waterway."
Sanson says all known plants have been removed from the water and inspections have found no further sign of the weed.
However, as a precaution, a more comprehensive survey is taking place today, using a boat supplied by the council harbour master.
It is illegal to sell, propagate or distribute water hyacinth. Those who may have seen the pest can call Biosecurity New Zealand’s pests and diseases hotline on 0800 80 99 66.
Legal controls on the movement of fruits and vegetables are now in place in Auckland’s Mt Roskill suburb, says Biosecurity New Zealand Commissioner North Mike Inglis.
Arable growers worried that some weeds in their crops may have developed herbicide resistance can now get the suspected plants tested for free.
Fruit growers and exporters are worried following the discovery of a male Queensland fruit fly in Auckland this week.
Dairy prices have jumped in the overnight Global Dairy Trade (GDT) auction, breaking a five-month negative streak.
Alliance Group chief executive Willie Wiese is leaving the company after three years in the role.
A booklet produced in 2025 by the Rotoiti 15 trust, Department of Conservation and Scion – now part of the Bioeconomy Science Institute – aims to help people identify insect pests and diseases.

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