Answer :

Final answer:

Insecticide on plants enters insects through ingestion, residual contact, and systemic absorption.


Explanation:

Insecticide on plants gets into insects mainly through different routes of exposure:

  1. Ingestion: Insects consume parts of the plant treated with insecticide.
  2. Residual contact: Insects come into contact with the insecticide residue left on the plant surface.
  3. Systemic absorption: Some insecticides are absorbed by the plant and circulate within its tissues, reaching insects that feed on the plant.

Learn more about Insecticide exposure pathways to insects here:

https://brainly.com/question/41246790


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