Pengaruh Ekstrak Etanol Daun Bandotan (Ageratum conyzoides L.) Terhadap Mortalitas Hama Wereng Coklat (Nilaparvata lugens) Pada Tanaman Padi

YULI, RAHMAWATI (2022) Pengaruh Ekstrak Etanol Daun Bandotan (Ageratum conyzoides L.) Terhadap Mortalitas Hama Wereng Coklat (Nilaparvata lugens) Pada Tanaman Padi. Diploma thesis, UIN RADEN INTAN LAMPUNG.

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Abstract

ABSTRAK Wereng coklat (Nilaparvata lugens) merupakan salah satu hama tanaman padi. Hama ini menjadi vektor virus sehingga padi gagal panen dan produksinya menurun. Penanggulangan wereng coklat dapat dilakukan menggunakan bahan alami yang ramah lingkungan seperti ekstrak daun bandotan. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak etanol daun bandotan(Ageratum conyzoides L.) dan konsentrasi ekstrak etanol daun bandotan (Ageratum conyzoides L.) yang efektif terhadap mortalitas wereng coklat (Nilaparvata lugens) pada tanaman padi. Penelitian dilaksankan pada bulan November - Desember 2021. Parameter yang diamati adalah mortalitas. Penelitian ini menggunakan metode eksperimen menggunakan rancang acak lengkap (RAL) dengan menggunakan 5 perlakuan yaitu kontrol negatif, kontrol positif dan uji ekstrak dengan konsentrasi 6%, 9%, 12%, dengan 3 kali pengulangan. Bahan yang digunakan berupa ekstrak daun bandotan (Ageratum conyzoides L.) dan wereng coklat (Nilaparvata lugens) berjumlah 150, sempel uji didapatkan dari sawah di Kecamatan Raman Utara, Lampung Timur. Pengamatan dilakukan selama 3 hari. Analisis data ini dilakukan dengan Analisis Of Varians (ANOVA) dan uji lanjut Duncan’s Mutliple Range Test Dmrt (DUNCAN). Uji probit Lethal Consentration (LC50) untuk mengetahui konsentrasi penyebab kematian 50% populasi wereng coklat. Hasil dari penelitian ini menjelaskan bahwa terdapat pengaruh penggunaan ekstrak daun bandotan pada perlakuan P3 dengan konsentrasi 12% dengan tingkat mortalitas sebesar 80%. Dari hasil analisis probit diperoleh nilai LC50 sebesar 7,2ml. Kata kunci: Daun bandotan (Ageratum conyzoides L.), Mortalitas Wereng coklat (Nilaparvata lugens) iv ABSTRACT Brown planthopper (Nilaparvata lugens) is one of the pests of rice plants. This pest becomes a virus vector so that rice harvests fail and production decreases. Brown planthopper control can be done using environmentally friendly natural ingredients such as bandotan leaf extract. This study aimed to determine the effect of ethanol extract of bandotan leaves (Ageratum conyzoides L.) and the concentration of ethanolic extract of bandotan leaves (Ageratum conyzoides L.) which were effective on the mortality of brown planthopper (Nilaparvata lugens) in rice plants. The study was conducted in November - December 2021. The parameter observed was mortality. This study used an experimental method using a completely randomized design (CRD) using 5 treatments, namely negative control, positive control and extract test with concentrations of 6%, 9%, 12%, with 3 repetitions. The materials used were bandotan leaf extract (Ageratum conyzoides L.) and 150 brown planthoppers (Nilaparvata lugens) , the test samples were obtained from rice fields in North Raman District, East Lampung. Observations were made for 3 days. Analysis of this data was carried out with Analysis Of Variance (ANOVA) and continue test Duncan's Multiple Range Test Dmrt (DUNCAN). The Probit Lethal Concentration (LC50) test was used to determine concentration cause of death in 50% brown planthopper population. The results of this study explained that there was an effect of using bandotan leaf extract on P3 treatment with a concentration of 12% with a mortality rate of 80%. The probit analysis resulted that the LC50 value was 7.2 ml. Keywords: Bandotan leaf (Ageratum conyzoides L.), Brown planthopper mortality (Nilaparvata lugens)

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