insecticidally
/ɪnˌsɛktɪˈsaɪdəli/
adverb
- In a way that kills insects or relates to killing insects.
- The chemical was applied insecticidally to protect the crops from infestation.
- The spray works insecticidally, targeting only harmful bugs.
- These plants have evolved to act insecticidally against leaf-eating caterpillars.