New Zealand Tests Didymo-Killing Chemical

The first field tests of a chemical that could be used to kill didymo while not harming trout was conducted Tuesday in a branch of Princhester Stream, on the northern slopes of the South Island’s Takitimu Mountains. “On Tuesday, a helicopter had flown 831 litres of prepared Gemex to the release site, where it had been delivered into the water stream at a carefully gauged rate for an hour.” Didymo algae infestations have spread throughout South Island streams in recent years. Bruce Fraser in The Southland Times.

This entry was posted in Conservation. Bookmark the permalink.