Which is NOT an example of pest habitat manipulation?

The correct choice is the use of harpoon mole traps, as this technique involves directly capturing or killing pests rather than manipulating their habitat to make it less conducive for them to thrive. Pest habitat manipulation typically refers to practices that change the environment to make it less attractive or suitable for pests.

Removing stagnant water sources is a well-known method for controlling mosquito populations, as standing water serves as a breeding ground. Eliminating dense vegetation can help reduce habitats for various pests, including ticks and rodents, by making areas less hospitable. Utilizing insect repellents is also a form of pest control but falls under chemical control methods rather than habitat manipulation. While repellents deter pests, they do not alter the environment or habitat itself. This distinction helps confirm that using harpoon mole traps is not considered habitat manipulation.