What is an example of a systemic pest control agent?

A systemic pest control agent is one that is absorbed by the plant and then translocated throughout its tissues, providing protection against pests that may feed on it. Imidacloprid is a prime example of a systemic insecticide that is effective in treating certain insect infestations. When it is applied to the soil or foliage, the plant takes it up, and as the insect feeds on the plant, it consumes the pesticide, thereby controlling the pest effectively.

Other options represent different classes of pest control agents. Malathion is a contact insecticide rather than a systemic one, which means it acts on pests when they come into direct contact with it rather than being taken up by the plant. Glyphosate, primarily known as a systemic herbicide, targets weeds and is not effective against insect infestations like Imidacloprid. Pyrethrin is a natural insecticide that acts as a contact poison and does not have systemic properties. Therefore, B is the correct choice as it exemplifies a systemic pesticide that effectively manages insect pests through absorption and translocation within the plant.