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Remove flowering Pampas from kiwifruit orchards
14 June 2018

There has been an increase in the numbers of pampas seed detected on fruit this packing season.  Any seed attached to fruit is a reject factor and may cause market access issues if found within a shipment or container.  All seed contaminating fruit has been from the very invasive South American plant, Pampas. 

Pampas is well-established in most regions where kiwifruit is grown and is now in full-flower. The seeds (more than 100,000 per flowerhead) will be dispersed by strong winds - any Pampas growing in or adjacent to kiwifruit orchards can cause problems. If Pampas is established in your orchard or shelter belt, cut down and destroy the flowerheads now. Plants can be dug out or removed by a digger or controlled with glyphosate herbicide.  A surfactant/spreader must be added to the herbicide mixture. Do not attempt to spray Pampas in an orchard if fruit is still on vines.

Pampas is different from the native Toetoe in that Pampas grows faster and is a very invasive plant; it flowers in autumn rather than spring; is more robust and has an upright growth habit rather than the more prostrate Toetoe; and produces a different shaped, larger flowerhead (cone-shaped rather than the limp flag-like flower of the native Toetoe). View a table listing all differences.

KVH will be talking to regional councils, road and rail authorities to request more pampas control, especially along the road and rail corridors.

Email John Mather
at KVH if you would like any further information.

Kiwifruit Vine Health

Suite 3, Level 1, Customhouse Building
314 Maunganui Road, Mount Maunganui
(entrance cnr Totara and Rata Street)
PO Box 4246, Mount Maunganui, 3149
New Zealand

Tel:  0800 665 825
Fax: 07 574 7591