Federated Farmers is working with the Ministry of Agriculture and Forestry and the Department of Conservation, along with other industry groups, to establish a central process to manage Canada geese.
From June 9, the Canada goose lost its limited protection status and was transferred to schedule 5 of the Wildlife Act.
That meant Fish and Game would no longer manage the geese as a hunting resource.
"We're open to groups of hunters who should welcome the freedom of hunting without the cost or restrictions of a permit.
"As far as Canada goose is concerned, we have a year-round season and no bag limit.
"The key is to act in a cost-effective and collective way to manage numbers with the objective of reducing the birds' overall population in the long term," Federated Farmers game and pest animal management spokesman Donald Aubrey said.
Fish and Game's management regime was "simply not up to the task" of controlling the birds' numbers.
The 1995 Canada Goose Management Plan set a population limit of 20,350 in the South Island but, by 2008, that figure was more than 35,000, he said.
Federated Farmers was assuming the chair of an overarching group being established to look at data, such as population concentrations, consider specialist advice and make recommendations to regions where the problem was prevalent, Mr Aubrey said.