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All Journal Jurnal Fitopatologi Indonesia Agrikultura Cropsaver : Journal of Plant Protection Jurnal Perlindungan Tanaman Indonesia Jurnal Agrotek Tropika Soil REns Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat

RIKA MELIANSYAH

Departemen Hama Dan Penyakit Tumbuhan, Fakultas Pertanian Universitas Padjadjaran Jalan Raya Bandung-Sumedang KM 21. Jatinangor, Indonesia 45363

Author-ID : 319410

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology

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Bioactivity Formulation Of Leaf Extract Of Kalanchoe pinnata And Seed Of Azadirachta indica Against Spodoptera litura Paramita, Hedi; Puspasari, Lindung Tri; Maharani, Rani; Supratman, Unang; Hidayat, Yusup; Meliansyah, Rika; Dono, Danar
CROPSAVER - Journal of Plant Protection Vol 1, No 1 (2018)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar

The aim of this research is to know the most effective concentration of liquid formulation of Kalanchoe pinnata leaf extract 50 EC and Azadirachta indica seed extract 50 EC against S. litura. The experiment was conducted at the Laboratory of Pesticides and Enviromental Toxicology, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran. The concentration were tested of each formulation were 1%, 2%, 3 %, 4%,and control.Â The experiment arranged in completely randomized design (CRD) and replicated three times. The results showed that the formulation of A. indica seed extract 50 EC at concentration of 2%, 3%, and 4% effective against S. Litura larvae with mortality of 76.7%, 86.7, and 93.3%Â This formulation also causing a decrease in feeding activity, weight, and lenghten the development time of S.litura larvae. Unlike the case with liquid formulations of K. pinnata 50 EC extract which was less toxic and did not show significant differences in feed intake, weight of larvae, and development time of larvae compared control treatment.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Keywords: Toxicity, mortality, growth dearragement, botanical insecticide.

Potensi Cuka Kayu Pinus dalam Pengendalian Penyakit Antraknosa pada Cabai Merah Sri Hartati; Rika Meliansyah; Lindung Tri Puspasari
Jurnal Fitopatologi Indonesia Vol 9 No 6 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Anthracnose disease caused by Colletotrichum capsici is a major disease on red chili which causes great economic losses. Wood vinegar, as a result of condensation of smoke, can be used as bactericide and fungicide. The use of pine wood vinegar is prospective for controlling anthracnose disease. The objective of this research was to study the potency of pine wood vinegar in controlling anthracnose on red chili. In vitro test was carried out to measure the inhibition of pine wood vinegar against the growth of mycelium mass and the germination of the conidium of C. capsici. The treatments were the concentration of the pine wood vinegar, i.e. 0, 1.5, 2.5, 3.5, 4.5, and 5 %, and a fungicide (2% of antracol) as comparison. The results showed that the lower the concentration of the pine wood vinegar, the lower the inhibition of the mycelium growth. The highest inhibition of the mycelium growth (76.1%) was caused by 5% of the pine wood vinegar, followed by 41.04% inhibition caused by 4.5% concentration. There was no germination of the conidium on all treatments.

Bioaktivitas Formulasi Minyak Biji Azadirachta indica (A. Juss) terhadap Spodoptera litura F. Raden Arif Malik Ramadhan; Lindung Tri Puspasari; Rika Meliansyah; Rani Maharani; Yusup Hidayat; Danar Dono
Agrikultura Vol 27, No 1 (2016): April, 2016
Publisher : Fakultas Pertanian Universitas Padjadjaran

ABSTRACTBioactivity Formulation of Seed Neem Oil Azadirachta indica (A.Juss) against Spodoptera litura (F)The purpose of this research was to know the influence of neem seed extract formulation (Azadin 50 EC) on the mortality, larvae development, larvae weight, and food consumption of Armyworm (Spodoptera litura). This research used randomized complete design with 6 treatments and 5 replications, i.e. control, formula at concentration of 0.2%, 0.4%; 0.8%; 1.6%; and 3.2%. Correlation of concentration neem seed oil formulation and mortality of test insect was analysed using probit analysis, weight of test larvae presented in mean and standard deviation, and development time and food consumption of test larvae analysed with analysis of varians. Formula Azadin 50 EC had LC50 value of 0.659% (0.550-0.781%) at 12 days after treatment. The mortality increased significantly in pupae stage that caused LC50 value become 0.152%. The formula prolonged development time, decrease the weight of test insect and decrease food consumption by the larvae.Keywords: Lethal concentration, Mortality, Growth derangement, ExtractABSTRAKPenelitian ini bertujuan untuk mempelajari perlakuan formulasi minyak biji mimba Azadin 50 EC terhadap mortalitas, perkembangan larva, bobot larva dan konsumsi pakan ulat grayak (Spodoptera litura F.). Metode Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 6 perlakuan dengan 5 kali ulangan. Perlakuan tersebut yaitu : Kontrol, konsentrasi formula minyak mimba Azadin 50 EC 0,2%; 0,4%; 0,8%; 1,6% dan 3,2%. Hubungan mortalitas dengan konsentrasi formula dianalisis menggunakan analisis probit, sedangkan data bobot larva, konsumsi pakan dan waktu perkembangan larva dianalisis dengan sidik ragam. Hasil penelitian menunjukkan bahwa formula minyak biji A. Indica memiliki nilai LC50 sebesar 0,659% (0,550-0,781%) terhadap larva instar 2 hingga instar 4. Pada fase pupa kematian kembali meningkat tajam sehingga nilai LC50 menjadi 0,152%. Perlakuan formula tersebut mengakibatkan perpanjangan waktu perkembangan, menurunkan bobot, dan menurunkan konsumsi pakan larva uji.Kata Kunci: Konsentrasi letal, Mortalitas, Gangguan perkembangan, Ekstrak

Potency of Yeasts to Promote Induced Resistance on Chili Plant (Capsicum annuum L.) against Yellow Leaf Curl Disease Sri Hartati; Rika Meliansyah; Luciana Djaya; Ceppy Nasahi; Ramadhan Kamal Putra
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.52089

Yellow leaf curl is a major disease on chili plants. The use of antagonistic yeasts as the control agents is a good alternative in an environmentally friendly control method. This study was objected to evaluate the potencies of Rhodotorula minuta and Candida tropicalis to promote induced resistance on chili plants against yellow leaf curl disease. The experiment was arranged in the randomized complete block design with 9 treatments and 3 replications. The treatments were the application of the yeasts at three different times of virus inoculation, as follows: A. R. minuta, virus inoculation at 3 days after transplanting (dat), B. R. minuta, virus inoculation at 7 dat, C. R. minuta, virus inoculation at 10 dat, D. C. tropicalis, virus inoculation at 3 dat, E. C. tropicalis, virus inoculation at 7 dat, F. C. tropicalis, virus inoculation at 10 dat, G. control, virus inoculation at 3 dat, H. control, virus inoculation at 7 dat, and I. control, virus inoculation at 10 dat. No treatment was applied to the control. The yeasts were applied by soaking the chili seeds, and pouring the suspension into the growth media at transplanting. The variables observed were incubation period, disease severity, and disease incidence. Peroxidase activity, phenylalanine ammonia lyase activity, and salicylic acid accumulation were also analyzed. The results showed that the application of R. minuta or C. tropicalis was able to extend the disease incubation period, but did not reduce the yellow leaf curl disease incidence and severity. The treatment of R. minuta, virus inoculation at 7 dat, increased the peroxidase activity from 2590.80 units to 6870.93 units (0.5 minute) and from 577.367 units to 1131.300 units (2.5 minutes), PAL activity from 16.059 to 17.911 A290/mg, and accumulation of salicylic acid from 2.785 to 6.263 ppm. Application of C. tropicalis, virus inoculation at 7 dat, increased the peroxidase activity from 2590.80 units to 6033.067 units (0.5 minute) and from 577.367 units to 950.967 units (2.5 minutes), and accumulation of salicylic acid from 2.785 to 6.982 ppm.

Aplikasi Pupuk Organik terhadap Diversitas Arthropoda Akuatik serta Performa Tanaman Padi Hitam pada Ekosistem Sawah Vira Kusuma Dewi; Tiara Febricyanti Putri Senjaya; Fitri Widiantini; Agus Susanto; Sri Hartati; Lindung Tri Puspasari; Rika Meliansyah
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41354

The aquatic ecosystems in rice fields has macroorganisms such as aquatic arthropods which have an important function in the food web. The siam weed and neem cake can be utilized as organic fertilizer to support the productivity and biodiversity of the paddy field, This research aims to understand application of organic fertilizer on diversity of aquatic arthropods and black rice performance in the field ecosystem. The experiment was carried out in paddy field at Jatinangor from January to June 2020. The method used was an experimental method with a Randomized Complete Block Design consisted of five treatments (neem cake, siam weed compost, cow manure, synthetic fertilizer and control) with six replications. The result showed that the abundances of aquatic arthropods have tendency to be higher in neem cake at 1104 individuals and siam weed compost treatments at 905 individuals compared to the cow manure, NPK and control. Furthermore, the diversity index of the aquatic arthropods in all treatments were categorized as moderate with details as follow neem cake (H’=1,726), cow manure (H’=1,450); synthetic fertilizer (H’=1,458); siam weed compost (H’=1,450) and control (H’=1,502). In addition, the evenness index (E) of aquatic arthropods was higher in neem cake treatment (E=0,623) compared to other treatments. Whereas, the dominance index (C) and richness index (R) in all treatments showed no dominant species and it classified as low category. The results also showed that the siam weed compost were not significantly different with all treaments except NPK (synthetic fertilizer) in plant hight, tiller number and SPAD value.

Kepadatan Populasi dan Pola Distribusi Keong Mas (Pomaceae canaliculta L.) pada Ekosistem Sawah di Kecamatan Jatinangor Vira Kusuma Dewi; Rizky Ramdhani; Tarkus Suganda; Lindung Tri Puspasari; Rika Meliansyah
Soilrens Vol 20, No 2 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i2.45272

Golden snail (Pomacea canaliculata L.) one of a keypests in rice cultivation in Indonesia. There are three species of golden snails in Indonesia, these are P.canaliculata L., P. insularum D., and P. paludosa S. The purpose of this research was to determine the population density and distribution pattern of golden snails (P. canaliculata) at Jatinangor rice fields. The research was conducted from June 2020 to August 2020 with purposive sampling method on 24 rice fields in 12 villages, specifically Hegarmanah, Cibeusi, Cikeruh, Cipacing, Sayang, Cileles, Cilayung, Cisempur, Cintamulya, Jatimukti, Mekargalih, and Jatiroke in Jatinangor, Sumedang and golden snails identification was conducted at the laboratory. The sample was taken by using purposive sampling method. Each rice fields used as a sampling location has a size 10 m x 5 m with 2 rice fields were determined for sampling in each village. Therefore, total research location was 24 rice fields. Two lands were taken from one village with a distance of ± 1 km between the fields. This is done to get a comparison of environmental conditions. The results showed that the density of snails in the rice fields of Jatinangor was categorized rare with an average density of 3.33 individuals/m². The difference in the density of snails in each area in Jatinangor was caused by differences in the age/phase of rice plants and control techniques. Furthermore, distribution pattern of the golden snail at the rice fields of Jatinangor has a clumped pattern for all locations

Aplikasi Berbagai Jenis Pupuk terhadap Serangga Terrestrial dan Pertumbuhan Tanaman Padi Hitam Vira Kusuma Dewi; Reynaldi Reynaldi; Toto Sunarto; Santika Sari; Lindung Tri Puspasari; Rika Meliansyah
Soilrens Vol 21, No 1 (2023)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v21i1.49436

Paddy field ecosystem is a complex ecosystem and build a food web. Tri-trophic interaction in paddy field involves rice plants as producers, phytophagous and neutral insects as first consumers, and their natural enemies as second consumers..This study was conducted to analyze the effect of siam weed and neem cake compost on abundance arthropod in black rice. The experiment was carried out in paddy field at Jatinangor from May to November 2018. The experimental method was used a randomized Complete Block Design with five treatment as follow neem cake, siam weed compost, cow manure, synthetic fertilizer and control) and six replications. The results showed, that arthropods abundance and plant performance including plant height, tiller number and SPAD value were higher in siam weed compost and neem cake treatment if compared with other treatments. Furthermore, there were strong correlation between insect herbivore with natural enemies in siam weed treatment.

Tipe Puru dan Serangga yang Berasosiasi pada Puru Daun Mangga (Mangifera indica L.) Varietas Gedong Gincu di Desa Karyamukti, Kecamatan Tomo, Kabupaten Sumedang Puspasari, Lindung Tri; Nurochman, Irvan Sopyan; Meliansyah, Rika; Dewi, Vira Kusuma; Bari, Ichsan Nurul; Qosim, Warid Ali
Agrikultura Vol 35, No 1 (2024): April, 2024
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v35i1.54017

Serangga pembentuk puru merupakan hama potensial yang dapat menurunkan hasil panen mangga dengan menghambat pertumbuhan bunga dan pembentukan buah pada tanaman. Informasi terkait serangga pembentuk puru serta parasitoidnya di Indonesia masih terbatas sehingga penting dipelajari jenis serta keragamannya dalam mendukung usaha pengendaliannya. Tujuan penelitian ini adalah untuk mempelajari jenis-jenis puru dan mengidentifikasi serangga pembentuk puru serta parasitoidnya yang berasosiasi pada puru daun mangga. Penelitian dilakukan dari bulan September 2022 hingga bulan April 2023 di Desa Karyamukti, Kecamatan Tomo, Kabupaten Sumedang.Pemeliharaan sampel daun mangga bergejala puru dilakukan di Laboratorium Bioteknologi Proteksi Tanaman, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran, Jatinangor. Identifikasi morfologi serangga dilakukan di Laboratorium Hama Tanaman, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran, Jatinangor. Sampel daun bergejala puru diambil secara purposive sampling pada 50 pohon mangga varietas Gedong Gincu kemudian dilakukan identifikasi morfologi pada serangga yang muncul dari daun bergejala puru tersebut. Hasil penelitian menunjukkan bahwa puru daun mangga yang ditemukan dapat dibedakan menjadi lima bentuk yaitu pustulate, low-doughnut, bell-shaped, conical, dan circular-blister. Serangga yang berasosiasi di dalamnya terkonfirmasi secara morfologi ada yang berperan sebagai pembentuk gejala puru yaitu Procontarinia robusta, beberapa parasitoid yaitu Chrysonotomyia sp., Pediobius sp., Mangostigmus sp., Eurytoma sp.1, Euryotoma sp.2, Platygaster sp., Eupelmus sp., dan Pteromalidae sp.1, serta satu serangga inquilines yaitu Phlaeothripidae sp.1. Hasil penelitian ini akan memberikan kontribusi penting terhadap pengetahuan dasar tentang pola serangan serangga di tanaman mangga dan merupakan data dasar untuk penerapan pengendalian hama.

Potency of Yeast’s Volatile Compounds to Control Cercospora coffeicola: Potency of Yeast’s Volatile Compounds to Control Cercospora coffeicola Hartati, Sri; Meliansyah, Rika; Mayanti, Tri
Jurnal Fitopatologi Indonesia Vol. 20 No. 1 (2024): Januari 2024
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.20.1.1-14

Penyakit bercak daun cercospora yang disebabkan oleh Cercospora coffeicola merupakan salah satu penyakit utama pada tanaman kopi. Di antara metode alternatif untuk mengendalikan penyakit tanaman ialah dengan memanfaatkan senyawa volatil anticendawan yang dihasilkan oleh agens antagonis. Khamir merupakan salah satu agens yang berperan dan berpotensi menghasilkan senyawa volatil anticendawan. Penelitian ini bertujuan menentukan karakter morfologi khamir dan kemampuannya menghasilkan senyawa volatil yang bersifat anticendawan terhadap C. coffeicola. Isolasi khamir dilakukan dari tanaman kopi di beberapa lokasi di Kecamatan Cilengkrang, Kabupaten Bandung dan Kecamatan Jatinangor, Kabupaten Sumedang. Tahapan penelitian yang dilakukan terdiri atas isolasi khamir dari daun dan buah kopi, karakterisasi koloni dan sel khamir secara morfologi, dan uji kemampuan anticendawan senyawa volatil khamir secara in vitro dengan metode double dish system. Hasil penelitian didapatkan sebanyak 52 isolat khamir. Karakteristik koloni isolat khamir yang didapatkan didominasi oleh warna putih, krem, dan oranye, memiliki tepian yang rata, bergerigi hingga berfilamen serta memiliki bentuk koloni bulat hingga tidak beraturan. Karakteristik mikroskopis dari isolat khamir yang didapatkan menunjukkan bentuk yang bervariasi, yaitu bulat, bundar telur, jorong, bulat telur, serta memanjang dengan ukuran berkisar 2.59-18.13 × 1.23-7.77 µm. Seluruh isolat khamir yang didapatkan mampu menghambat pertumbuhan C. coffeicola melalui aktivitas senyawa volatil anticendawan dengan tingkat penghambatan berkisar antara 11.85% dan 79.26%.

Potensi Tiga Jenis Khamir dalam Mengendalikan Penyakit Bercak Cokelat (Alternaria solani Sorr.) pada Tomat Hartati, Sri; Istifadah, Noor; Aoliya, Salwa Rohmatul; Meliansyah, Rika; Mayanti, Tri
Agrikultura Vol 35, No 2 (2024): Agustus, 2024
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v35i2.54374

Penyakit bercak cokelat yang disebabkan oleh Alternaria solani Sorr. merupakan salah satu penyakit penting pada tanaman tomat yang dapat menyebabkan kehilangan hasil hingga 86%. Salah satu pengendalian yang dapat dilakukan untuk penyakit tersebut yaitu dengan agens biokontrol berupa khamir. Penelitian ini bertujuan untuk menguji potensi tiga spesies khamir dalam menghambat pertumbuhan A. solani secara in vitro dan menekan penyakit bercak cokelat pada tanaman serta buah tomat. Percobaan dilakukan di Laboratorium Bioteknologi Proteksi Tanaman dan Rumah Kaca Kebun Ciparanje, Fakultas Pertanian, Universitas Padjadjaran. Percobaan in vitro menggunakan Rancangan Acak Lengkap, sedangkan percobaan in vivo menggunakan Rancangan Acak Kelompok. Perlakuan pada pengujian in vitro dan in vivo berupa spesies khamir, terdiri dari Aureobasidium pullulans Dmg 11 DEP, Candida tropicalis Lm 13 BE, Rhodotorula minuta Dmg 16 BEP, fungisida berbahan aktif klorotalonil 75% (untuk pengujian in vivo), dan kontrol. Pengujian in vitro dilaksanakan dengan metode dual culture antara patogen A. solani versus khamir antagonis. Pengujian in vivo dilakukan dengan penyemprotan pada tanaman dan pencelupan buah tomat dalam suspensi sel khamir. Hasil percobaan in vitro menunjukkan bahwa khamir yang diuji dapat menghambat pertumbuhan koloni A. solani sebesar 23,67 % – 40,56%. Uji penekanan penyakit secara in vivo menunjukkan bahwa khamir yang diuji dapat menekan penyakit bercak cokelat sebesar 47,62% – 75,29% pada tanaman tomat dan 49,86% – 62,18% pada buah tomat. Khamir A. pullulans memberikan penekanan tertinggi, baik terhadap pertumbuhan koloni A. solani maupun terhadap penyakit bercak cokelat pada tanaman dan buah tomat.

Co-Authors Agus Susanto Al Farisy, Muhammad Restu ANNE NURAINI Anni Yuniarti Aoliya, Salwa Rohmatul Bari, Ichsan Nurul Ceppy Nasahi Danar Dono Danar Dono Dewi, Vira Kusuma Dikdik Kurnia Endah Yulia Erni Suminar Fitri Widiantini Hersanti - Ida Ayu Putu Sri Widnyani Kusumadewi, Vira Lindung Tri Puspasari Luciana Djaya Narendra, Nathanael Dimas Noor Istifadah Nurochman, Irvan Sopyan Paramita, Hedi R. Arif Malik Ramadhan Rahmat Budiarto Ramadhan Kamal Putra Rani Maharani Rani Maharani Reynaldi Reynaldi Rizky Ramdhani Santika Sari Setiani, Cahya Siti Julaeha, Siti Sri Hartati Sri Hartati Sudarjat Sudarjat SYARIFUL MUBAROK Tarkus Suganda Tiara Febricyanti Putri Senjaya Toto Sunarto Tri Mayanti Unang Supratman Vira Kusuma Dewi WARID ALI QOSIM Wawan Kurniawan Yulianto, Fiky Yusup Hidayat Yusup Hidayat

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