Repellency and attractancy of plant extracts against <i>Plodia interpunctella</i> and <i>Sitophilus zeamais</i>

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P> <I>Plodia interpunctella</I> and <I>Sitophilus zeamais</I> are among the most destructive insect pests of stored processed food products. The use of natural materials rather than conventional pesticides to control these pests is a promising alternative to conventional neurotoxic insecticides. In this study, we tested organic extracts from 13 species of plants; most showed different effects on <I>S. zeamais</I> and <I>P. interpunctella</I>. Eleven of the extracts had repellent effects on <I>S. zeamais</I> but either an attractant effect or no effect on <I>P. interpunctella</I>. These results suggested that different species of insects have different reactions to plant extracts, and such extracts may have applications as storage products to prevent infestation by both <I>P. interpunctella</I> and <I>S. zeamais</I>.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>Plodia interpunctella</I> was attracted to some of 13 plant extracts but was repelled by others. </LI> <LI> <I>Sitophilus zeamais</I> was repelled by all 13 tested plant extracts. </LI> <LI> <I>Plodia interpunctella</I> is attracted to some plant extracts that repelled <I>Sitophilus zeamais</I>. </LI> </UL> </P>