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Pesticides: A Key Concern for the Great Barrier Reef
The Great Barrier Reef located in the Coral Sea, off the coast of Queensland, Australia is the world’s largest coral reef system. It covers an area of 133,000 square miles and is composed of 2,900 reefs and 900 islands.

Pollution and declining water quality are a couple of key threats faced by the Great Barrier Reef. In 2009 a pesticide monitoring program collected samples at eleven sites; at least two pesticides were detected at every site. Diuron, atrazine, and metolachlor exceeded Australian and New Zealand water quality guidelines at eight sites.

Over 90% of this pollution comes from farm runoff which is caused by over grazing, excessive fertilizer and pesticide use.


 
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Hybrid Form of Milfoil on Pentwater Lake - Pentwater Lake Improvement Board President Joe Primozich recently issued an update on changes going on in overall health of Pentwater Lake. Primozich said according to Progressive AE, the Grand Rapids company that monitors the lake vegetation, the aquatic invasive water milfoil has now changed to the hybrid form. “This means that it has a greater tolerance to herbicides and will require a more costly treatment than dealing with the native northern milfoil or the exotic Eurasian milfoil of the past 16 years,” Primozich said. “This appears to be a more aggressive growth pattern.”


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