Plans for experimental burns in the MacKenzie Basin have been postponed because the weather has been too unsettled.
Scientists from scion Forestry Research Institute will be teaming up with Canterbury rural firefighters to set controlled fires in blocks of wilding conifers.
The aim is to study the fire hazard posed by pest pines spreading through large areas of inland South Island and also, how effectively they can be controlled by burning.
The burns were scheduled to be carried out this month at Pukaki Downs Station, near Twizel.
But Scion said they had been put off until further notice because it had been too wet and the outlook was for more unsettled weather.