MUKLASIN, KHAULAH HAFIZHOTUDZIKRI (2025) UJI EFEKTIVITAS PESTISIDA NABATI EKSTRAK DAUN SIRSAK (Annona montana) TERHADAP MORTALITAS WERENG BATANG COKLAT (Nilaparvata lugens). S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
Rice (Oryza sativa L.), Indonesia’s main food crop, suffers significant yield losses due to brown planthopper (Nilaparvata lugens) infestations, which also act as vectors for viral diseases. Excessive use of synthetic pesticides has led to environmental contamination and pest resistance, prompting the need for safer, eco-friendly alternatives. This research aimed to evaluate the effectiveness of soursop (Annona montana) leaf extract as a botanical insecticide against N. lugens. The experiment was conducted from October to December 2024 at the Indonesian Center for Forecasting Plant Pests (BBPOPT) in Jatisari, Karawang, using a Completely Randomized Design (CRD) with five extract concentrations (0%, 10%, 20%, 30%, and 40%) and five replications, totaling 25 experimental units. Each unit contained ten fourth-instar N. lugens nymphs. Observations were carried out daily for seven days, measuring mortality rate, lethal time, and morphological changes. Results showed that concentrations of 10% to 40% achieved mortality rates between 94% and 100%, with the highest efficacy (100%) observed at concentrations of 30% and above. The 40% concentration yielded the shortest lethal time of 1.24 days, significantly faster than 2.90 days at 10%. Treated insects exhibited distinct morphological alterations such as desiccation, shrinkage, and darkened cuticle, indicating toxic effects from bioactive compounds like annonaceous acetogenins. Statistical analysis confirmed a significant correlation between extract concentration and insect mortality. In conclusion, A. montana leaf extract demonstrated high efficacy in controlling N. lugens, with 40% concentration being the most effective in both mortality and speed of action, supporting its potential as a sustainable pest control alternative in rice cultivation.
| Item Type: | Thesis (S1) | ||||||||||||
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| Additional Information: | Padi (Oryza sativa L.) sebagai tanaman pangan utama di Indonesia mengalami kehilangan hasil signifikan akibat serangan wereng cokelat (Nilaparvata lugens), yang berperan sebagai hama langsung dan vektor virus. Penggunaan pestisida sintetik yang berlebihan memicu pencemaran lingkungan dan resistensi hama, sehingga diperlukan alternatif pengendalian yang aman dan berkelanjutan. Penelitian ini mengevaluasi efektivitas ekstrak daun sirsak (Annona montana) sebagai insektisida nabati terhadap N. lugens. Uji dilakukan di BBPOPT Jatisari, Karawang (Oktober–Desember 2024) menggunakan Rancangan Acak Lengkap lima konsentrasi (0–40%) dan lima ulangan pada nimfa instar IV selama tujuh hari. Konsentrasi 10–40% menghasilkan mortalitas 94–100%, dengan efikasi tertinggi (100%) pada konsentrasi ≥30%. Konsentrasi 40% menunjukkan waktu kematian tercepat (1,24 hari) dan memicu gejala morfologis seperti dehidrasi, penyusutan, serta kutikula menghitam akibat senyawa asetogenin. Analisis statistik menunjukkan korelasi signifikan antara konsentrasi dan mortalitas, menjadikan ekstrak A. montana alternatif efektif dalam pengendalian N. lugens. | ||||||||||||
| Uncontrolled Keywords: | Keywords: annonaceous acetogenins, botanical insecticide, brown planthopper, p | ||||||||||||
| Subjects: | S Agriculture > S Agriculture (General) | ||||||||||||
| Divisions: | 04-Fakultas Pertanian 04-Fakultas Pertanian > 54211-Program Studi Agroekoteknologi |
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| Depositing User: | Khaulah Hafizhotudzikri Muklasin | ||||||||||||
| Date Deposited: | 25 Aug 2025 02:43 | ||||||||||||
| Last Modified: | 25 Aug 2025 02:43 | ||||||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/52638 |
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