Aerial possum control – Molesworth

Vector Free Marlborough Limited has been contracted by TBfree New Zealand to carry out the Molesworth aerial possum control operation using sodium fluoroacetate (1080) cereal pellets. The Molesworth aerial forms part of OSPRI’s TBfree programme.

The treatment area spans over 61,200 hectares of public conservation land administered by the Department of Conservation (DOC) known as Molesworth Station. It encompasses the areas of the Wards Pass to the Acheron Accommodation House, then downstream of the Clarence River to the Spray Stream. Deer repellent coated cereal pre-feed and 1080 bait, brown in colour will be applied over approximately 2,000ha within the Guide area.

Please click on the link below for more information regarding the map of the operational area and the key facts about the toxin being used and the precautions that should be taken.

Vector Free Ltd wish to advise that this operation is due to take place as soon as practicable from 5th October 2017 onwards, weather dependent.

They will first apply non-toxic pre-feed to increase the effectiveness of the operation. This will be followed by toxic 1080 baits (green in colour) usually after 7 - 10 days. Warning signs will be erected at all points of public access and will remain in place while toxic baits are present and/or poisoned possum carcasses may be present. All instructions on the signs should be carefully followed.

Vector Free Marlborough Limited has completed the consultation process with the affected landowners and neighbouring landowners to explain the operation and gather information on matters such as water supplies, fencing and grazing areas.

If you have any questions, please contact our Communications Manager on 0508 548 008, or email