Insect plague killing La. marsh

A plague of Asian insects is killing a critical coastal marsh grass in Louisiana. It will likely worsen in 2018, according to Louisiana State University scientists studying the issue. Over the past 12 months, the tiny Asian scale insect has decimated vast stands of roseau cane, a flood- and erosion-resistant marsh grass, that holds large portions of the lower Mississippi River Delta together. As the plant dies, the landscape will unravel, exacerbating the state's land loss crisis, the scientists say. (Source: NOLA.com 11/16/17)