Which aquatic herbicide is known for being strongly absorbed to suspended soil particles?

The aquatic herbicide known for being strongly absorbed to suspended soil particles is indeed Diquat. This herbicide is a contact herbicide, meaning it needs to directly touch the target plants to be effective. Its strong adsorption to sediment and soil particles can limit its mobility in water, thus enhancing its effectiveness in targeting vegetation close to the sediment where it can adhere.

In aquatic applications, this characteristic helps to concentrate the herbicide's action in areas where unwanted plant growth might be most prevalent, such as near the bottom of water bodies where sediment accumulates. This property can also reduce the risk of unwanted movement of the herbicide into non-target areas, which is an important consideration in aquatic environments to protect sensitive ecosystems.

Diquat's effectiveness is particularly valuable in managing specific types of aquatic plants, and its uptake by target plants is important for controlling invasive species. The other herbicides mentioned have different characteristics that affect their absorption and interaction with soil and sediment, thus making them less likely to be strongly absorbed in the same manner as Diquat.