insecticidal
/ɪnˌsɛktɪˈsaɪdəl/
adjective
- Relating to or used for killing insects.
- The farmer sprayed an insecticidal soap on the rose bushes to get rid of aphids.
- This plant produces its own insecticidal compounds to protect itself from pests.
- Some insecticidal chemicals can harm bees if not used carefully.