How are systemic insecticides applied?

How are systemic insecticides applied?

• A. Surface application (absorbed) or direct injection into plants.
• B. Aerial spraying only.
• C. Baiting in traps only.
• D. Pouring into water.

Answer: (A)

Systemic insecticides work by being absorbed into the plant and then moving through its tissues, so protection follows the pest wherever it feeds. Because of that, they’re applied in ways that the plant can take up and distribute the chemical: a surface application that the plant can absorb, or a direct injection into the plant to ensure the product is circulated through its vascular system. This is why this approach is the best choice. Aerial spraying, baiting in traps, or pouring into water do not reliably deliver systemic protection to the plant and can raise other concerns like non-target exposure or environmental harm. In practice, systemic products are also used as soil drenches, seed treatments, or trunk injections, all aimed at getting the chemical into the plant so it moves to new growth and various tissues.

Systemic insecticides work by being absorbed into the plant and then moving through its tissues, so protection follows the pest wherever it feeds. Because of that, they’re applied in ways that the plant can take up and distribute the chemical: a surface application that the plant can absorb, or a direct injection into the plant to ensure the product is circulated through its vascular system. This is why this approach is the best choice. Aerial spraying, baiting in traps, or pouring into water do not reliably deliver systemic protection to the plant and can raise other concerns like non-target exposure or environmental harm. In practice, systemic products are also used as soil drenches, seed treatments, or trunk injections, all aimed at getting the chemical into the plant so it moves to new growth and various tissues.