Disadvantages:
- Algaecides can be harmful to soil health if used in excess, as they can kill beneficial bacteria and other organisms that help to break down organic matter and keep the soil healthy.
- This can lead to a build-up of toxins in the soil, which can be taken up by plants and eventually end up in the food chain.
- Algaecides can also leach into groundwater and contaminate drinking water supplies.
- They can also be harmful to animals, humans and the environment if not used correctly.