Farmers have voiced concerns over the state of New Zealand's pest problem, with some saying the issue has reached 'crisis point'.

Federated Farmers' latest National Pests Survey shows numbers are on the rise and that farmers are calling for a coordinated response across public and private land.

Federated Farmers' pest control spokesperson Richard Dawkins says they're proposing a national strategy to cut down on pests.

"That basically recognises that this is a nationwide problem, particularly around deer - they're the ones having the most impact on productive farmland." 

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