Exposure route where death occurs after contact with a surface residue and then the insect dies

Exposure route where death occurs after contact with a surface residue and then the insect dies

• A. Direct contact
• B. Systemic
• C. Physical
• D. Indirect contact

Answer: (D)

Indirect contact occurs when an insect dies after touching a surface that has pesticide residue. The chemical remains on the surface after application, and as the insect crawls over or brushes against it, it absorbs the toxin through the cuticle, leading to death without a direct spray or ingestion. Direct contact would mean the insect is sprayed or sprayed onto it; systemic exposure involves the pest feeding on plant tissues that have taken up the chemical; the surface-residue route specifically describes death from encountering residues on surfaces.

Indirect contact occurs when an insect dies after touching a surface that has pesticide residue. The chemical remains on the surface after application, and as the insect crawls over or brushes against it, it absorbs the toxin through the cuticle, leading to death without a direct spray or ingestion. Direct contact would mean the insect is sprayed or sprayed onto it; systemic exposure involves the pest feeding on plant tissues that have taken up the chemical; the surface-residue route specifically describes death from encountering residues on surfaces.