"It is with regret that we announce this decision, but the safety of everyone involved is our priority," she said
Six of the last nine shows in what was once a 59-show Shearing Sports New Zealand season have now been cancelled, including the Royal Easter Show in Auckland.
Also cancelled are four events which were to have been held this weekend, Saturday's Warkworth and Methven A and P shows, and Sunday's Waitomo Sports and Flaxbourne A and P Show.
Organisers of the Waimarino Shears have decided to go ahead with their event in Raetihi on Saturday, confident they can meet controls needed for the event to be staged but monitoring the situation as it changes throughout the country.
Organisers of the Oxford A and P Show on April 4 and the Mackenzie A and P Show, which incorporates the national lamb shearing championships on Easter Monday, are expecting to make decisions over the next two days.
Shearing Sports New Zealand chairman Sir David Fagan said there will be no New Zealand shearing team tour of the UK this year, with the selection events at Te Kuiti now not being held, restrictions on international travel and likelihood the crisis would also lead to cancellation of events in Britain.
"The decision was expected with what's happening in New Zealand, and internationally," he said.
"There were the regulations, and it's morally the right thing to do."