For the past few years, State of Michigan officials have warned residents about a colorful insect that that damages fruit, hops, and hardwood trees. Now, national health experts are backing that up, saying this pest should be killed on sight.
The Pennsylvania Fish and Boat Commission and Department of Environmental Protection are reminding people who go out on the water what to do to prevent spreading the invasive alga didymo, or 'rock snot'.
While it looks super gross, rock snot is not harmful to humans, according to a report by CBS 2...