Insecticidal (adjective)

1. Having the qualities or properties of an insecticide.
2. Capable of killing insects.

Origin:

Late 19th century: from insecticide + -al. the current sense of the word dates from the late 19th century.

Examples:

1. Insecticidal sprays are commonly used to control pests in the garden.
2. The insecticidal properties of the poison made it an effective tool against pests.
3. The insecticidal activity of the compound was tested on various species of insects.
4. Insecticidal treatments are often used to prevent the spread of diseases carried by insects.
5. Insecticidal substances are often applied to crops to protect them from damage.