Bioinsecticide Male Coconut Flower Extract Oil palm ( Elaeis guineensis Jacq.) against Mortality of Spodoptera litura F. larvae .

Authors

  • Regi Sandy State University of Malang
  • Sofia Ery Rahayu State University of Malang
  • Frida Kunti Setiowati State University of Malang

DOI:

https://doi.org/10.19184/bioedu.v24i1.53697

Keywords:

Bioinsecticide, Death, Toxicity

Abstract

Caterpillar grayak (Spodoptera litura F.) is a pest important thing that causes damage serious about various plant cultivation so that required alternative more control​ safe and friendly environment. This research aim For know effectiveness extract flower male coconut oil palm (Elaeis) guineensis Jacq.) as bioinsecticide to mortality of Spodoptera litura larvae. The study was conducted in a way experimental use method non-choice feeding test with Completely Randomized Design (CRD) consisting of on five treatments, namely control negative, control positive, and extracts at concentrations of 2%, 4%, and 8%, five replicates each with ten second-instar larvae per replicate (total 250 larvae). Extract obtained through method maceration use 70% ethanol and applied to the leaves spinach as test feed with method spraying. Mortality observed every 24 hours up to 120 hours. Data is analyzed using ANOVA and Tukey's follow-up test, as well as analysis probit For determine LC₅₀ value. Research results show that mortality increase along increase concentration and time exposure. A concentration of 8% indicates effectiveness highest with mortality reached 100% at 120 hours, approaching control positive. Analysis probit show LC₅₀ value decreases from 8.84% (24 hours) to 2.45% (120 hours), which indicates improvement toxicity extract against test larvae. Extract flower male coconut palm oil potential developed as bioinsecticide in control strategy pest sustainable.

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References

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Published

2026-02-28

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