Rohimah, Rohimah (2026) Uji Efektivitas Konsentrasi dan Jenis Ekstrak Bintaro (Cerbera odollam) Terhadap Pengendalian Hama Kutu Putih (Pseudococcus citriculus) pada Tanaman Jambu Biji (Psidium guajava L.). S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
This study aimed to examine the effectiveness of different concentration (5%, 15%, and 30%) and types of Cerbera odollam extracts (leaves and seeds) in controlling mealybug pests on guava plants. The research was conducted using a Completely Randomized Design (CRD) with two treatment factors and four replications for each treatment. Observation included mealybug mortality, lethal time 50% (LT50), morphological changes, and behavioral changes over 12 days after extract application. The results showed that extract concentration had a highly significant effect on mortality, LT50 and morphological changes, while the type of extract only had significant effect on color change. Mealybug mortality reached 100% at concentrations ≥ 5% within 12 days after application, with the fastest LT50 (3 days) observed at 30% seed extract. Thus, the application of Cerbera odollam extracts with appropriate concentration could be an effective and sustainable pest control method for optimazing productivity guava plants. Keywords : Biopesticide, Cerbera odollam, Lethal time 50%, Mortality, Pseudococcus citriculus.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Penelitian ini bertujuan untuk mengkaji efektivitas berbagai konsentrasi (5%, 15%, dan 30%) serta jenis ekstrak Cerbera odollam (daun dan biji) dalam mengendalikan hama kutu putih pada tanaman jambu biji. Penelitian disusun menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktor perlakuan dan empat ulangan. Pengamatan dilakukan selama 12 hari setelah aplikasi ekstrak, meliputi mortalitas kutu putih, lethal time 50% (LT₅₀), serta perubahan morfologi dan perilaku. Hasil penelitian menunjukkan bahwa konsentrasi ekstrak berpengaruh sangat nyata terhadap mortalitas, nilai LT₅₀, dan perubahan morfologi, sedangkan jenis ekstrak hanya berpengaruh nyata terhadap perubahan warna. Mortalitas kutu putih mencapai 100% pada konsentrasi ≥ 5% dalam waktu 12 hari setelah aplikasi. Nilai LT₅₀ tercepat (3 hari) diperoleh pada perlakuan ekstrak biji dengan konsentrasi 30%. Dengan demikian, penggunaan ekstrak Cerbera odollam pada konsentrasi yang tepat berpotensi menjadi metode pengendalian hama yang efektif dan berkelanjutan untuk mengoptimalkan produktivitas tanaman jambu biji. Kata kunci: Biopestisida, Cerbera odollam, Lethal time 50%, Mortalitas, Pseudococcus citriculus. | |||||||||
| Subjects: | S Agriculture > S Agriculture (General) | |||||||||
| Divisions: | 04-Fakultas Pertanian > 54211-Program Studi Agroekoteknologi | |||||||||
| Depositing User: | Rohimah Rohimah | |||||||||
| Date Deposited: | 07 Jan 2026 08:35 | |||||||||
| Last Modified: | 07 Jan 2026 08:35 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/57027 |
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