Definition of insecticidal in English:

insecticidal

adjective

  • See insecticide

    • ‘If aphids, mites, scales, or other insects infest any of your houseplants, slip a plastic garment cover (the kind you get from a dry cleaner) over the plant and spray with insecticidal soap.’
    • ‘If fungal diseases or aphids do appear, the plants are simply sprayed with a combination of one tablespoon baking soda and one tablespoon dish soap (or insecticidal soap) mixed in a gallon of water.’
    • ‘The discovery of the insecticidal properties of dichloro-diphenyl-tricholoromethylmethane, DDT, has a short and crowded history closely connected with the fight against typhus.’
    • ‘Phosphine has been used worldwide as an insecticidal fumigant for stored grains since the 1930s because it is relatively inexpensive, easy to apply, and essentially residue free.’
    • ‘Moreover, the insecticidal protein in the plant begins to break down immediately after the plant dies so there is no danger of its toxic effect in soil or underground water.’

Pronunciation

insecticidal

/ɪnsɛktɪˈsʌɪd(ə)l/