Organic farmers in the Mary Valley region of south-east Queensland are expressing their outrage over a weed-spraying initiative by the Gympie Regional Council, which they argue poses a significant threat to their organic farming practices and the habitat of critically endangered turtles. The council's program targets olive hymenachne grass, an invasive weed located along the banks of Amamoor Creek, which serves as a crucial water source for local cattle. The farmers, Tim and Amber Scott, have stated that the introduction of herbicides not only puts their organic certification at risk but also leads to a potential contamination of their water supply, which could require extensive testing and complicate their farming operations.