Abstract
Laboratory spraying experiments were carried out with DDT, allethrin, the triethanolamine salt of 3:5 dinitrocresol (TDNOC) and HETP against eggs of different ages ofDiataraxia oleracea(Lepidoptera) and with allethrin, HETP and TDNOC against eggs of different ages ofEphestia kühniella(Lepidoptera) andDysdercus fasciatus(Hemiptera) under controlled temperature and humidity conditions.

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