Growth disruptive effects of ferulic acid against Spodoptera litura (Fabricius) and its parasitoid Bracon hebetor (Say)
Growth disruptive effects of ferulic acid against Spodoptera litura (Fabricius) and its parasitoid Bracon hebetor (Say)
- Author(s) A. Punia, N.S. Chauhan, R. Singh, S. Kaur and S.K. Sohal
- Year: 2022
- Month: January
- Volume: 55
- Pages: 79-92
We studied the effects of ferulic acid (5, 25, 125, 625, 3125 ppm concentrations) in artificial diet on Spodoptera litura (Fabricius) and its parasitoid Bracon hebetor (Say) on 6-days old larvae of S. litura. Higher concentrations of ferulic acid increased the mortality of S. litura larvae, decreased adult emergence and delayed the developmental period. The higher concentration (LC50= 2573.33ppm) of ferulic acid also decreased the growth of B. hebetor (Say) larvae. However, the adverse effects were less at lower concentration (LC30=25.92 ppm). The ferulic acid significantly reduced the nutritional indices (RGR, RCR, ECD and ECI) and immune response in S. litura larvae. Our findings suggested that lower concentrations of ferulic acid may help in controlling insect-pest population and conserve the parasitoid’s fitness.
