What type of pesticide formulation is designed to be absorbed through plant tissues?

Systemic pesticides are specifically formulated to be absorbed by plants and translocated throughout their tissues. This allows the pesticide to affect pests that consume parts of the plant, whether they're feeding on leaves, stems, or roots. By being absorbed and moving within the plant, systemic pesticides provide a more comprehensive means of pest control, particularly for sap-sucking insects and certain diseases.

The other formulations, while having their own benefits, do not function in the same way. Contact pesticides, for instance, work by directly hitting the pest upon application, but they do not penetrate the plant tissues. Granular pesticides are applied to the soil or as surface granules and need to dissolve or be taken up through soil moisture to be effective, while aerosol pesticides are often used as a quick surface treatment and do not penetrate plant tissues. Thus, systemic pesticides are uniquely suited for absorption and internal pest management.