Definition of insecticidal in English:

insecticidal

adjective

  • See insecticide

    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘The discovery of the insecticidal properties of dichloro-diphenyl-tricholoromethylmethane, DDT, has a short and crowded history closely connected with the fight against typhus.’

Pronunciation

insecticidal

/ɪnsɛktɪˈsʌɪd(ə)l/