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All Journal HAYATI Journal of Biosciences Jurnal Fitopatologi Indonesia Cropsaver : Journal of Plant Protection Jurnal Agroteknos Berkala Penelitian Agronomi Agrokompleks
Rahayu Mallarangeng, Rahayu
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Medicine & Pharmacology

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Pengendalian Hama Plutella xylostella L. pada Tanaman Kubis yang Ditumpangsarikan dengan Tanaman Tomat Nurmas, Andi; Mallarangeng, Rahayu; Kristianto, Andi
Berkala Penelitian Agronomi Vol 8, No 1 (2020)
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/bpa.v8i1.12087

Abstract

Penelitian bertujuan untuk mengevaluasi pola tanam terhadap keberadaan hama dan musuh alami, intensitas kerusakan tanaman kubis dan produktivitas lahan tumpangsari kubis dan tomat. Penelitiandilakukan di Laboratorium Lapangan Kebun Percobaan IIdan Laboratorium Unit Agronomi Fakultas Pertanian Universitas Halu Oleo, Kendari, pada bulan April hingga Juni 2018.Penelitian menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 4 perlakuan dengan 5 kali ulangan sebagai kelompok sehingga diperoleh 24 unit percobaan, yang terdiri dari monokultur kubis (MK), monokultur tomat (MT), tumpangsari kubis + tomat berjalur (TB) dan tumpangsari kubis + tomat selang-seling (TS). Variabel yang diamati yaitu: (1) intensitas kerusakan daun kubis (%), (2) jenis hama yang ditemukan selama penelitian,  (3) produksi kubis (g), (4) produksi tomat, dan (5) Land Equivalent Ratio (LER).Hasil penelitian menunjukkan bahwa pola tanam tumpangsari kubis + tomat berjalur dan tumpangsari kubis + tomat berselang-seling mampu menekan intensitas serangan hama Plutella xylostella L. danSpodoptera litura. Tumpangsari kubis + tomat berjalur merupakan perlakuan pola tanam terbaik dengan nilai Land Equivalent Ratio (LER) > 1,50. Kata kunci : Jenis hama, Land Equivalent Ratio (LER), Tumpangsari kubis+tomat
UJI EFISIENSI PENULARAN VIRUS GEMINI DENGAN SERANGGA KUTUKEBUL (Bemisia tabaci) PADA TANAMAN CABAI RAHMAYANI, DITA; TAUFIK, MUHAMMAD; SYAIR, SYAIR; BANDE, LA ODE SANTIAJI; ASNIAH, ASNIAH; MALLARANGENG, RAHAYU; BOTEK, MUHAMMAD
Jurnal Agroteknos Vol 14, No 2 (2024)
Publisher : Jurnal Agroteknos

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Abstract

Chili is one of the important vegetables that are cultivated commercially in tropical countries with various benefits. One of the important diseases of chili plants is jaundice caused by Begomovirus or gemini virus. The disease is transmitted through a whitefly (Bemisia tabaci). The research aims to evaluate the ability and number of whitefly insects that can transmit the gemini virus to chili plants. The research was carried out using a group random design (RAK), 4 treatments each treatment was repeated 5 times. The treatment consisted of no inoculation of whitefly on plants (S0), inoculation of 1 whitefly/plant (S1), inoculation of 3 whitefly/plant (S2) and inoculation of 5 whitefly/plant (S3). The variables observed were vegetative growth, incidence and severity of disease. The presence of the whitefly (B. tabaci) increases the incidence and severity of jaundice and inhibits growth in cayenne pepper plants (C. annuum). The transmission of the gemini virus is faster with the inoculation of 5 ticks/plant with the highest incidence and severity of the disease.
PENGARUH PEMBERIAN BERBAGAI TAKARAN SERASAH TANAMAN UBI KAYU TERHADAP PERTUMBUHAN BIBIT METE DAN KETAHANANNYA TERHADAP SERANGAN HAMA WERENG PUCUK METE (Sanurus indecora) DI PEMBIBITAN Nurmas, Andi; Mallarangeng, Rahayu; Mursalim, Soleha
Jurnal Agroteknos Vol 2, No 3 (2012)
Publisher : Jurnal Agroteknos

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Abstract

This research was conducted at the New Campus Anduonohu, Kendari from December 2011 to March 2012. The purpose of this study was to determine the effect of various doses of  cassava plant litter  on  the  growth of  cashew seedlings and  resistance to  pest  attack planthopper shoots cashew in the nurseries. The design of the study was Randomized Block Design (RBD) with 4 levels of treatment that were: treatment without cassava plant litter +(U0), the provision of cassava plant litter 40 g polybag-1, equivalent to 10 ton ha-1 (U1), the provision of cassava plant litter 80 g polybag-1, equivalent to 20 ton ha-1 (U2), the provision of cassava plant litter 120 g of polybag-1, equivalent to 30 ton ha-1 (U3) and each treatment was repeated 3 times so that there were 12 experimental units and each treatment used 2 cashew seedlings,therefore overall cashew seedlings used was 24 cashew seedlings. The results showed that administration of various doses of the cassava plant litter showed no significant effect on plant height, leaf number, stem diameter ages 60  and 90 days after planting, leaf area, dashed ratio of plant roots and dry weight and had significant effect on stem diameter age 30 days after planting. The intensity of hopper pests of cashew shoots (Sanurus indecora) obtained the highest treatment without cassava plant litter with the intensity of attacks and the lowest 13,9% obtained in the treatment of 10 ton ha-1, 20 ton ha-1 and 30 ton ha-1 with 2,8% intensity of attacks. Keywords: cassava plant litter, cashew seedlings, and Sanurus indecora.
Distribution of Yellow Curly Leaf Disease in Chili Plantations in Southeast Sulawesi and Identification of the Causes Muhammad Taufik; HS, Gusnawaty; Syair, Syair; Mallarangeng, Rahayu; Khaeruni, Andi; Botek, Muhammad; Hartono, Sedyo; Aidawati, Noor; Hidayat, Purnama
Jurnal Fitopatologi Indonesia Vol 19 No 3 (2023): Mei 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.3.89-98

Abstract

Penyakit daun keriting kuning pada pertanaman cabai di Sulawesi Tenggara telah dilaporkan sejak tahun 2018, yaitu di Kabupaten Kolaka Timur dan Kota Kendari. Gejala penyakit di lapangan semakin meluas seiring dengan perluasan penanaman cabai. Penelitian bertujuan menghitung kembali insidensi penyakit daun keriting kuning pada pertanaman cabai di Sulawesi Tenggara, mengidentifikasi serangga yang berasosiasi dengan tanaman cabai, dan mengidentifikasi penyebab penyakitnya. Pengamatan insidensi penyakit dilakukan di pertanaman cabai yang berada di Kabupaten Bombana, Konawe Selatan, Konawe, Kendari, Kolaka Timur, Kolaka, dan Kolaka Utara. Identifikasi kutukebul dilakukan berdasarkan karakter morfologi. Deteksi dan identifikasi begomovirus menggunakan metode polymerase chain reaction, yang dilanjutkan dengan analisis sikuensing. Rata-rata insidensi penyakit daun keriting kuning di tujuh kabupaten ialah 36%–90%. Spesies kutukebul yang ditemukan adalah Aleurotrachelus trachoides. Fragmen DNA spesifik begomovirus berukuran 580 pb berhasil diamplifikasi dari sampel tanaman cabai asal tujuh kabupaten di Sulawesi Tenggara. Analisis sikuen mengonfirmasi infeksi Pepper yellow leaf curl Indonesia virus pada pertanaman cabai di Kabupaten Kolaka, Kolaka Utara, Bombana, Konawe, dan Konawe Selatan.
Morphometric Analysis of Chili Leaves with Yellow Curly Symptom Using Digital Image Processing Approach and Data Mining Algorithm Hasan, Asmar; Taufik, Muhammad; Bande, La Ode Santiaji; Khaeruni, Andi; Mallarangeng, Rahayu; Gusnawaty HS; Asniah; Syair; Rahman, Abdul
Jurnal Fitopatologi Indonesia Vol 19 No 6 (2023): November 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.6.231-237

Abstract

Gejala kuning keriting pada daun cabai umumnya disebabkan oleh infeksi Begomovirus. Daun tanaman terinfeksi tidak hanya mengalami perubahan warna sebagai indikator rusaknya klorofil tetapi juga mengalami perubahan morfologi bentuk. Penelitian ini bertujuan menguantifikasi gejala infeksi Begomovirus berdasarkan perubahan morfologi bentuk daun menggunakan pengolahan citra digital dan algoritma data mining yang akan memudahkan dalam pemantauan dan analisis perkembangan penyakit tanaman. Total 33 citra daun cabai rawit bergejala kuning keriting maupun tidak bergejala menjadi dataset penelitian ini. Citra daun cabai tersebut diolah dan diekstrak karakteristik bentuknya berupa circularity, aspect ratio, roundness, dan solidity menggunakan aplikasi Fiji-ImageJ. Selanjutnya dilakukan uji beda (uji-t), pengelompokan citra menggunakan algoritma Simple K-Means, dan evaluasi ketepatan hasil pengelompokan berdasarkan indeks ARI dan NMI. Hasil penelitian menunjukkan bahwa secara umum ada perbedaan bentuk yang nyata antara daun bergejala dengan daun tidak bergejala. Daun cabai rawit bergejala kuning keriting memiliki rata-rata nilai aspect ratio dan solidity yang lebih kecil dibandingkan daun cabai tidak bergejala, sebaliknya memiliki rata-rata nilai circularity dan roundness yang lebih besar dibandingkan daun cabai tidak bergejala. Evaluasi ketepatan pengelompokan sampel daun cabai rawit bergejala maupun tidak bergejala berdasarkan indeks ARI dan NMI menghasilkan nilai terbaik untuk pengelompokkan ke dalam dua kelompok.
Evaluation of Lantana camara Leaf Extract as Biopesticide for Lifecycle Disruption in Spodoptera litura Mallarangeng, Rahayu; Syamsinar; Hasan, Asmar; Hisein, Waode Siti Anima; Taufik, Muhammad; Nuriadi; Johan, Eko Aprianto
HAYATI Journal of Biosciences Vol. 32 No. 4 (2025): July 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.4.1053-1061

Abstract

Spodoptera litura is a destructive agricultural pest whose management is hindered by synthetic pesticides' ecological and health risks. Plant-based biopesticides, such as Lantana camara leaf extract, provide a sustainable alternative due to the presence of bioactive phytochemicals with pesticidal properties. Therefore, this study aimed to evaluate the efficacy of L. camara extract in disrupting the lifecycle of S. litura. A completely randomized design was adopted, and six treatment concentrations of L. camara extract, namely 0%, 6.25%, 12.5%, 25%, 50%, and 100%, were applied to second-instar larvae. Observations included larval development time, leaf consumption, pupation rate, pupal weight, moth emergence, and fecundity. Data were analyzed using ANOVA, and the result showed that the extract had strong dose-dependent effects on all variables. Pupation, moth development, and fecundity were inhibited by concentrations greater than 25%. Feeding activity was significantly reduced at higher concentrations, with a 100% concentration achieving a 3.67% leaf consumption rate after 48 hours. Larval development was delayed or halted entirely at critical thresholds. In conclusion, L. camara extract effectively disrupted the lifecycle of S. litura, providing immediate suppression and long-term population control. The dual-action potential, biodegradability, and natural origin made extract a sustainable alternative to synthetic pesticides. Future studies are recommended to validate these results under field conditions and evaluate impacts on non-target species.
Relationship Between whitefly (Bemisia tabaci) Population and Pepper Yellow Leaf Curl Disease on Chili Plant Yield in The Field Taufik, Muhammad; Hasan, Asmar; Mallarangeng, Rahayu; HS, Gusnawaty; Khaeruni, Andi; Botek, Muhammad; Syair, Syair
CROPSAVER Vol 6, No 1 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i1.44927

Abstract

Whitefly vector insects can spread the Pepper yellow leaf curl Indonesia virus (PYLCIV)  that causes Begomovirus disease. One whitefly can transmit the virus, which belongs to the Begomovirus genus. It is suspected that the more whitefly, the higher the incidence and severity of Begomovirus disease. The increased severity of Begomovirus disease can affect chili yields. This study aimed to assess the relationship between the whitefly population level, the Begomovirus disease's intensity, and the production of chili peppers. The research method used was a survey of the farmers' chili plantations. Observations of the whitefly population and disease intensity were carried out on a scheduled basis. The results showed that the whitefly population affected the incidence and severity of the disease Begomovirus. Each addition of one whitefly/leaf will increase the incidence of disease by 25.981%, the severity by 15.269%, and reduce the yield of chili plants by 40.044 kg/ha. Meanwhile, every 1% increase in the severity of Begomovirus disease will reduce the production of chili plants by 2.867 kg/ha.
Metode Infrared Thermography (IRT) untuk deteksi cepat lubang aktif tikus sawah Hasan, Asmar; Taufik, Muhammad; Khaeruni, Andi; Mallarangeng, Rahayu; Syair, Syair; Bande, La Ode Santiaji; HS, Gusnawaty; Botek, Muhammad
Agrokompleks Vol 23 No 2 (2023): Agrokompleks Edisi Juli
Publisher : Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/japp.v23i2.559

Abstract

Tikus sawah (Rattus-rattus argentiventer) dapat menyebabkan kerusakan yang parah pada tanaman padi sawah. Pengendalian dengan fumigasi (pengasapan) berbahan aktif sulfur dapat membunuh tikus dalam lubang pematang. Fumigasi akan efektif bila lubang aktif tikus diketahui, namun mengenali lubang aktif tikus tidaklah mudah. Tujuan penelitian ini adalah mengevaluasi potensi metode Infrared Thermography (IRT) dalam mendeteksi lubang aktif tikus sawah melalui visualisasi citra termal. Beberapa lubang tikus yang ditemukan di areal persawahan milik petani di Desa Lebo Jaya, Kecamatan Konda, Kabupaten Konawe Selatan, Provinsi Sulawesi Tenggara direkam citra termalnya menggunakan FLIR C2 Compact Thermal Imager. Selanjutnya, citra termal dan RGB (red green blue) diolah menggunakan aplikasi FLIR Tools versi 6.4.18039.1003 (FLIR® Systems, USA) dan dilanjutkan dengan analisis suhu rata-rata lubang tikus menggunakan Microsoft Excel. Hasil pengolahan citra termal menunjukkan bahwa area tanah galian lubang tikus yaitu area sisi dalam lubang berwarna lebih gelap yang menandakan bahwa suhu tanah di area tersebut lebih rendah sampai berkisar pada suhu 28 °C, sebaliknya area sisi luar lubang berwarna lebih terang yang menandakan bahwa suhu tanah yang lebih tinggi sampai berkisar pada suhu 32 °C. Metode IRT ini sangat potensial untuk dimanfaatkan sebagai metode deteksi cepat lubang aktif tikus sawah. Implementasinya bersama teknologi drone (UAV) akan mengefisienkan waktu petani saat menandai lubang aktif tikus sawah pada areal persawahan yang luas. Selain itu, pengendalian tikus dengan teknik fumigasi juga akan menjadi lebih efektif dan ekonomis.
Co-Authors Abdul Rahman ANDI KHAERUNI ANDI NURMAS, ANDI Asmar Hasan Asniah Asniah Botek, Muhammad Eko Aprianto Johan Fachry Abda El Rahman GUSNAWATY HS, GUSNAWATY Hisein, Waode Siti Anima Kristianto, Andi La Ode Santiaji Bande MUHAMMAD TAUFIK Mursalim, Soleha NOOR AIDAWATI Nuriadi PURNAMA HIDAYAT RAHMAYANI, DITA SEDYO HARTONO Syair Syair, Syair