Topic
Lepidoptera genitalia
About: Lepidoptera genitalia is a research topic. Over the lifetime, 10114 publications have been published within this topic receiving 78876 citations. The topic is also known as: Uncus.
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01 Jan 1995
37 citations
TL;DR: Results suggested that UV-inducible flavonoids may act as feeding deterrents to P. rapae but not to T. ni, and chemical analysis showed that flavonoid levels increased in response to UV-B.
Abstract: Larvae of Pieris rapae (L.) (Lepidoptera: Pieridae) and Trichoplusia ni (Huebner) (Lepidoptera: Noctuidae) were fed foliage from Arabidopsis thaliana (L.) Heynh. plants that had received a high dose of ultraviolet-B (UV-B) or from control plants. Treatments were compared using the Student independent t-test. P. rapae larvae consumed less of the foliage exposed to UV-B than control foliage. This difference as significant in older but not younger larvae, and the older P. rapae larvae fed foliage exposed to UV-B weighed significantly less. For T. ni, however, consumption and larval weights were approximately equal for UV-exposed and control foliage. No significant differences in growth rates per unit consumption on UV-exposed versus control foliage were found for either species. Chemical analysis showed that flavonoid levels increased in response to UV-B. Results suggested that UV-inducible flavonoids may act as feeding deterrents to P. rapae but not to T. ni. 56 refs., 6 figs.
37 citations
Journal Article•
TL;DR: Bioefficacy of hexane, chloroform and ethyl acetate leaf extracts of Blumea mollis and Hygrophila auriculata was studied against Spodoptera litura to find out their antifeedant, larvicidal, larval duration, pupal duration and pupicidal activities.
Abstract: Bioefficacy of hexane, chloroform and ethyl acetate leaf extracts of Blumea mollis and Hygrophila auriculata was studied against Spodoptera litura to find out their antifeedant, larvicidal, larval duration, pupal duration and pupicidal activities. There was a corresponding increase in antifeedant, larvicidal, larval duration, pupal duration and pupicidal activities when there was increased in the concentration of the test extracts. Ethyl acetate extract of H. auriculata at 5.0% concentration had higher antifeedant (68.48%) and pupicidal (70%) activity. The LC50 value of 3.34% was observed in ethyl acetate extract of H. auriculata for larval mortality. Ethyl acetate extract prolonged the larval and pupal duration of S. litura.
37 citations