Codfish Island (Whenua Hou) 1998
NZ Department of Conservation treated Whenua Hou in August 1998.
After the success of the treatment of Putauhina and Raratoka the previous year, this much larger island (1396 Ha) was a considerable step up.
Two helicopters were used on the first drop with the target rate of 8kg/ha. The proposed second application of 4kg/ha was increased to 8kg/ha due to rain the night following the first drop. This drop was completed 9 days later.
Helicopters and pilots supplied by Peter Garden Heli Ltd (1st and 2nd drop)
Amuri Helicopters Ltd (1st drop)
Find out more about the project below