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All Journal Biofarm : Jurnal Ilmiah Pertanian Agrifarm: Jurnal Ilmu Pertanian
Novita Pramahsari Putri
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Malikussaleh
Agriculture, Biological Sciences & Forestry

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Repellensi dan Toksisitas Minyak Atsiri Daun Kirinyuh (Chromolaena odorata (L.) King & Robinson) terhadap Sitophilus oryzae L. Dea Rumambi Sinaga; Hendrival Hendrival; Khaidir Khaidir; Hafifah Hafifiah; Novita Pramahsari Putri; Muhammad Muaz Munauwar
Biofarm Jurnal Ilmiah Pertanian Vol 19, No 1 (2023): BIOFARM JURNAL ILMIAH PERTANIAN
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/biofarm.v19i1.2850

Abstract

Hama kumbang bubuk beras, Sitophilus oryzae (Coleoptera: Curculionidae) merupakan hama primer pada serealia di penyimpanan dengan kehilangan hasil mencapai 70%. Teknologi pengendalian alternatif yang lebih ramah lingkungan yaitu penggunaan minyak atsiri daun kirinyuh.  Penelitian bertujuan mempelajari pengujian aktivitas repellensi dan toksisitas minyak atsiri daun kirinyuh imago S. oryzae. Konsentrasi minyak atsiri daun kirinyuh yang diuji yaitu 0,25, 0,5, 1, 2, 4% (v/v) dan kontrol. Percobaan diulang sebanyak tiga kali. Metode residu pada kertas saring digunakan untuk pengujian aktivitas repellensi dan toksisitas minyak atsiri daun kirinyuh. Hubungan konsentrasi minyak atsiri daun kirinyuh dengan mortalitas imago S. oryzae ditentukan dengan analisis probit. Hasil penelitian menunjukkan bahwa minyak atsiri daun kirinyuh menyebabkan repellensi dan mortalitas imago S. oryzae bersifat terpaut konsentrasi. Aktivitas repellensi dan kematian imago pada konsentrasi 0,25–4% mencapai > 50%. Nilai LC50 minyak atsiri daun kirinyuh pada 2–7 hari setelah aplikasi berkisar antara 1,71– 0,22%. Hasil ini menunjukkan bahwa minyak atsiri daun kirinyuh dapat dimanfaatkan untuk pengendalian imago S. oryzae pada produk serealia yang disimpan.
Kerusakan Bulir Padi dan Keragaman Parasitoid Telur Hama Walang Sangit di Kabupaten Aceh Utara, Propinsi Aceh: Damage of Rice Grains and Parasitoid Diversity of Rice Ear Bug Eggsin North Aceh Regency, Aceh Province Hendrival Hendrival; Irham Irham; Muhammad Muaz Munauwar; Novita Pramahsari Putri; Nurmasyitah Nurmasyitah
Agrifarm : Jurnal Ilmu Pertanian Vol 13 No 2 (2024): Agrifarm
Publisher : Universitas Widya Gama Mahakam

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Abstract

The rice ear bug is a potential pest that damages rice grains. This pest damages rice grains when they reach the flowering phase until they are ripe for harvest. Egg parasitoid species can control rice ear bugs in the early stages of life. The research aims to calculate the percentage of attacks by rice ear bugs and explore the diversity of their egg parasitoids in the lowland rice agroecosystem in North Aceh Regency, Aceh Province. Purposive random sampling was used to determine the sampling location. Observations and sampling were carried out based on the stages of rice grain maturity, namely milk stage of rice (63–70 days), yellow-ripe (71–77 days), full ripe (78–84 days), and harvest ripe (85–91 days). Egg sampling was carried out in each sample plot of 50 groups of eggs. The results showed that damage to rice grains at all stages of grain maturity was relatively light, namely 0.6–17.6%. There were two species of egg parasitoids found, namely Hadronotus leptocorisae (Scelionidae) and Ooencyrtus malayensis (Encyrtidae). The species diversity index was low, while the species evenness index was high. The H. leptocorisae species is one of the dominant egg parasitoids with parasitization levels reaching > 50% at the milky and yellow-ripe stages
Co-Authors Dea Rumambi Sinaga Hafifah Hafifah Hendrival Hendrival Irham Irham Khaidir Khaidir Muhammad Muaz Munauwar Nurmasyitah Nurmasyitah