Which of the following is NOT a method of application for aquatic pest control?

The method identified as geothermal placement is not recognized as a standard method of application for aquatic pest control. Aquatic pest control typically involves addressing pests present in water bodies, such as lakes, ponds, and rivers. Common application methods include handgun spraying of the surface, which involves using equipment to directly apply pesticides to the water surface. This can effectively target pests that are present in open waters.

Aerial application is also a recognized method for large-scale aquatic pest management, allowing treatment of extensive water areas quickly and efficiently from the air. Additionally, subsurface injection is a method that targets pest populations below the water surface, delivering treatments directly to the pest habitat.

In contrast, geothermal placement does not fall within the conventional approaches used in aquatic pest control. It relates more to techniques involving the earth’s heat, rather than targeted pesticide application for pest management in aquatic environments. This distinction underscores why geothermal placement is not applicable in this context.