How do systemic pesticides work?

Systemic pesticides function by being absorbed through a plant's tissues, allowing them to circulate within the plant. This means that when a pesticide is applied to a plant, it enters the plant's system, providing internal protection against pests that may attack various parts of the plant, including leaves, stems, and roots. This comprehensive internal distribution is what sets systemic pesticides apart from other types of pesticides that may only provide surface-level protection or act on contact. The systemic nature of these pesticides ensures that even if pests feed on parts of the plant not directly treated, they can still be affected by the pesticide, leading to increased effectiveness in pest management.