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PENYAKIT PADA TANAMAN PISANG DAN DISTRIBUSINYA DI WILAYAH KECAMATAN SUMBANG KABUPATEN BANYUMAS Mirayanti Kusuma, Ajeng; Rostaman, Rostaman; K, Marsandi
Jurnal Agro Wiralodra Vol 3 No 1 (2020): Jurnal Agro Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/agrowiralodra.v3i1.36

Abstract

Pisang termasuk komoditas hortikultura yang penting di Indonesia. Pisang selain mudah didapat karena musim panennya berlangsung sepanjang tahun juga sangat digemari oleh masyarakat dunia tanpa pandang usia. Penelitian ini bertujuan untuk: 1) mengetahui jenis-jenis penyakit yang menyerang tanaman pisang, 2) menentukan tingkat serangan penyakit, 3) mengungkapkan pola penyebaran penyakit tanaman pisang di Kecamatan Sumbang, kabupaten Banyumas. Penelitian ini dilaksanakan di Kecamatan Sumbang pada Desember 2014 sampai dengan Maret 2015. Penelitan ini menggunakan metode survei, yaitu suatu pengamatan atau penyelidikan yang teliti dan seksama untuk mendapatkan keterangan yang jelas dan baik di daerah tertentu. Metode pengambilan sampel yang digunakan adalah purposive sampling, yaitu dengan pola pengambilan sampel pada daerah pertanaman pisang yang memiliki minimal 20 rumpun di seluruh desa di Kecamatan Sumbang Kabupaten Banyumas. Identifikasi penyakit dilakukan di Laboraturium Mikroba Simbiotik Tanaman (MST) Bioteknologi, Lembaga Ilmu Pengetahuan Indonesia (LIPI) Cibinong. Penelitian menunjukkan bahwa penyakit pada tanaman pisang adalah penyakit Layu Fusarium dan Sigatoka. Penyakit Layu Fusarium tersebar luas di seluruh desa Kecamatan Sumbang Kabupaten Banyumas, sedangkan penyakit Sigatoka tingkat serangan penyakitnya bervariasi dari rendah (0-30%), sedang (31-70%), hingga tinggi (>70%). Intensitas penyakit Sigatoka tertinggi terdapat di Desa Sikapat.
KEEFEKTIFAN BAKTERI Serratia ENDOSIMBION WBC TERHADAP ULAT GRAYAK (Spodoptera litura F.) DI LABORATORIUM ENTOMOLOGI BBPOPT JATISARI KARAWANG Dwimartina, Fina; Rostaman, Rostaman; Soesanto, Loekas
Jurnal Agro Wiralodra Vol 3 No 1 (2020): Jurnal Agro Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/agrowiralodra.v3i1.39

Abstract

Penelitian ini bertujuan untuk: 1) Mengetahui pengaruh perlakuan bakteri Serratia Endosimbion WBC terhadap mortalitas serangga S. litura; 2) Mengetahui pengaruh pemberian bakteri tersebut terhadap daya konsumsi larva S. litura; 3) Mengetahui pengaruh bakteri tersebut terhadap perkembangan serangga. Penelitian dilaksanakan di Laboratorium Entomologi BBPOPT Jatisari Karawang, pada bulan Maret sampai Juli 2014. Penelitian ini dilakukan dengan metode eksperimen, menggunakan rancangan acak terpisah yang terdiri dari 10 perlakuan dan 2 kali ulangan. Variabel yang diamati adalah mortalitas (%), tingkat konsumsi larva, dan perkembangan larva. Hasil penelitian menunjukkan bakteri Serratia tidak menimbulkan kematian pada serangga uji (mortalitas 0%), tidak berbeda nyata pada daya konsumsi larva, dan tidak berpengaruh nyata terhadap persentasi larva yang menjadi pupa. Bakteri Serratia berpengaruh nyata terhadap berat pupa dan persentasi pupa menjadi imago.
Raw Secondary Metabolites of Trichoderma harzianum T10 in Tapioca Flour Towards Cucumber Damping-off Soesanto, Loekas; Ilahiyyah, Hidayatul; Mugiastuti, Endang; Manan, Abdul; Rostaman, Rostaman
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 2 (2020): August 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i2.24567

Abstract

Trichoderma harzianum is effective for controlling soil-borne pathogenic fungi and producing secondary metabolites. When applied in the field, the raw secondary metabolites are quickly decreased directly by sunlight. One strategy to avoid degradation is the use of tapioca fluor liquid formula for biological control agents. This research aimed to obtain the most effective concentration of tapioca flour in development of raw secondary metabolites of Trichoderma harzianum T10, its effect on damping-off and growth of cucumber. This research was carried out at the screen house and the Plant Protection Laboratory, Faculty of Agriculture, Jenderal Soedirman University from September 2017 up to January 2018. The study was conducted in two stages, i.e., in vitro and in planta. The in vitro stage used completely randomized design with five repetitions and five treatments consisted of T. harzianum T10 in Potato Dextrose Broth, and in 0.5; 1; 1.5; and 2% of tapioca flour media. In in planta, randomized block design was used with five repetitions and six treatments consisted of control, T. harzianum T10 in PDB, and in 0.5; 1; 1.5, and 2% of tapioca flour media. Variables observed were density of conidia, disease incubation period, disease incidence, AUDPC, maximum growth potential, germination ability, plant height, canopy fresh weight, root length, and fresh root weight. Result of the research showed that the highest conidial density (1.23 x 107 conidia mL-1) of T. harzianum T10 was found in 2% tapioca flour with an increase of 63.28% compared to the PDB. The tapioca flour of 1 and 2%, and PDB could suppress the disease incidence by 81.82%. The lowest AUDPC was at 2% tapioca flour. The raw secondary metabolites could not delay the incubation period significantly and increase cucumber plant growth. The novelty is the use of antagonistic fungi in terms of raw secondary metabolites and the discovery of tapioca flour with the right concentration to produce high conidia density and high raw secondary metabolites. The benefits are to find other cheaper ingredients in promoting antagonistic fungal growth and the use of antagonistic fungal bioactive compounds to control plant pathogen
KEEFEKTIFAN BAKTERI Serratia ENDOSIMBION WBC TERHADAP LALAT BUAH MELON (Bactrocera cucurbitae) Astriani, Maya; Rostaman; Ismangil
Jurnal Agro Wiralodra Vol 3 No 2 (2020): Jurnal Agro Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/agrowiralodra.v3i2.50

Abstract

Lalat buah (Bactrocera spp.) merupakan salah satu hama penting pada tanaman buah-buahan dan sayuran di Indonesia. Hama ini bersifat polifag, menyerang berbagai jenis tanaman demi kelangsungan hidupnya. Di alam, bakteri Serratia mengakibatkan kematian wereng batang coklat. Penelitian ini bertujuan untuk: 1) mengetahui keefektifan bakteri Serratia Endosimbion WBC berdasarkan mortalitas lalat buah Bactrocera cucurbitae, 2) memastikan penularan bakteri tersebut secara transovarial, 3) mengetahui abnormalitas imago keturunan pertama (G1) akibat perlakuan bakteri tersebut. Penelitian ini dilaksanakan pada bulan Maret – Juni 2014 di BBPOPT Jatisari, Karawang dengan rancangan percobaan. Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 5 ulangan. Perlakuan tersebut antara lain: 1) Kontrol atau tanpa Bakteri Serratia (B0), 2) B1 : 3,09 x 1046 sel/mL bakteri Serratia, 3) B2 : 2,16 x 1052 sel/mL bakteri Serratia, 4) B3 : 1,73 x 1061 sel/mL bakteri Serratia, 5) B4 : 4,5 x 1066 sel/mL bakteri Serratia. Data dianalisis menggunakan ANOVA dan dilanjutkan dengan DMRT. Hasil penelitian mengungkapkan mortalitas imago sangat rendah yaitu 4 %, bakteri bersifat transovarial, tidak mengakibatkan abnormalitas imago keturunan pertama. Bakteri ini belum dapat digunakan sebagai agen pengendali hayati lalat buah yang potensial.
Pengaruh Aplikasi Asap Cair Tempurung Kelapa dan Pupuk NPK Terhadap Hama dan Penyakit pada Padi Gogo Ahadiyat, Yugi R.; Rostaman, Rostaman; Fauzi, Ahmad
Jurnal Penelitian Pertanian Tanaman Pangan Vol 4, No 3 (2020): Desember 2020
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v4n3.2020.p153-160

Abstract

Pest and disease control for the upland rice cultivation needs to be done ecologically with the proper dose of fertilizer. Coconut shell as natural waste can be converted into wood vinegar which is useful for a biopesticide. The application of coconut shell wood vinegar as biopesticide combined with different NPK fertilizer doses needs to be examined in controlling pests and diseases in the upland rice crop. The objective of this study was to know the effect of NPK fertilizer rate and coconut shell wood vinegar application on pests (locusts and leaf folder), and on pathogen infection (Cercospora) on upland rice. The experiment was conducted in Klampok Sub-district, Banjarnegara Regency from April to July 2017. A split plot design was used replicated three times. The main plot was NPK fertilizers viz. 50% and 100% recommendation dosage, and the sub plots were concentration of coconut shell wood vinegar viz. 0% 1%; 1.25%; 1.67%; 2.5% and 5%. The intensity of pest attack, namely locusts and leaf folder, and pathogen infection of Cercospora brown spot disease were observed. Results showed that application of coconut shell wood vinegar suppressed the intensity of locust and leaf folder pests, and lower the intensity of Cercospora pathogen infection. To reduce the intensity of pests and pathogenic infections in upland rice, the application of coconut shell wood vinegar is suggested along with the use of low dose of NPK, for more effective and efficient pest control in environmentally friendly manner.
Pengembangan Budidaya Kopi Robusta Organik pada Kelompok Tani Sido Makmur Desa Pesangkalan Kabupaten Banjarnegara Ahadiyat Yugi Rahayu; Okti Herliana; Ervina Mela Dewi; Rostaman Rostaman
Jurnal Ilmiah Pangabdhi Vol 5, No 2: Oktober 2019
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.784 KB) | DOI: 10.21107/pangabdhi.v5i2.6112

Abstract

Analisis Spasiotemporal Populasi Lalat Sciarid pada Budidaya Jamur Tiram Rostaman Rostaman; Agus Dana Permana; Tati S. Subahar; Soelaksono Sastrodihardjo; Udjianna Pasaribu
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11776

Abstract

Sciarid fly (Bradysia ocellaris Comstock) population growth and its distribution in the mushroom house was studied. Insects were collected using sticky yellow traps laid on 21 stations in the house over 18 weeks. At the first time, insects population was low. After that, insect population grew and reached at a maximum level in the 8th week. In subsequent weeks, insect population fluctuated. In the other hand, insect population dispersal also occured in the house. Based on spatiotemporal analysis using contour map and semivariogram analysis, insect population showed aggregation pattern, in a small group is called subpopulation. This was related to biological characters of insect such as eggs oviposition in mass and short flights.
Biologi Lalat Sciarid, Bradysia ocellaris (Diptera : Sciaridae), Serangga Hama pada Pertanaman Jamur Tiram Rostaman Rostaman; Agus Dana Permana; Tati S. Subahar; Soelaksono Sastrodihardjo
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 2 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11815

Abstract

Bradysia ocellaris Comstock is an important insect pest of oyster mushroom at Bandung. Eggs are oval, 0.44 ± 0.12 mm in length, 0.26 ± 0.08 mm in width, and translucent. Larvae are worm-like, legless, translucent, and capsule distinctive black. Larvae consist four instars. Pupae are obtectate, 2040 ± 0.22 mm in length, and 0.69 ± 0.10 mm in width. Adults are small, females 2.58 ± 0.28 mm and males 2021 ± 0.28 mm in length. Life cycle is 16 -6 26 days. Larvae feed on media, mycelia and fruit bodies. 
Respon Kumbang Tribolium castaneum Herbst terhadap Umpan Berbasis Semiokimia Rostaman Rostaman; R. C. Hidayat Soesilohadi; Rurini Retnowati
Jurnal Perlindungan Tanaman Indonesia Vol 9, No 2 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12236

Abstract

Monitoring of the red flour beetle (Tribolium castaneum Herbst) population by using semiochemical. based bait is important for supporting integrated pest management program. The baits were formulated succesfully using wheat bran as carrier and vegetable oils such as corn oil, soybean oil and palm oil as kairomone, and 4,8 dimethyl decanal. (DMD) as aggregation pheromone. The beetles responded to all baits both in laboratory and warehouse. The level of attractancy on bait loaded DMD is higher than others. Therefore loading of DMD is obligatory.
Effectiveness of Secondary Metabolites from Entomopathogenic Fungi for Control Nilaparvata lugens Stål. in the Laboratory Scale Endang Warih Minarni; Loekas Soesanto; Agus Suyanto; Rostaman Rostaman
Jurnal Perlindungan Tanaman Indonesia Vol 25, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.62116

Abstract

Nilaparvata lugens Stål. is an essential pest in rice plants. This pest attack can reduce crop yields and even crop failure. This research was conducted to obtain secondary metabolites that are effective in controlling brown planthopper (BPH). A randomized block design was used to test the effectiveness of secondary metabolites against BPH. The treatments tested were secondary metabolites produced by eight isolates of fungi consist of three concentrations: 5, 10, and 15%. Water and imidacloprid insecticide were used as control. The eight isolates were: J11 (Aspergillus sp.), J22 (Lecanicillium saksenae), J34 (Myrothecium sp.), J35 (Beauveria sp.), J41 (Fusarium sp.), J56 (Fusarium sp), J60 (Simplicillium sp.), and J65 (Curvularia sp.). Each treatment was repeated three times. The variables observed were mortality and time of death of BPH. Data were analyzed using the F test and followed by a DMRT if significant differences existed. The results showed that the secondary metabolites of the Lecanicillium saksenae, Myrothecium sp., and Simplicillium sp. fungi effectively controlled BPH pests by 80‒100% within 3.22‒5.47 days. The fungus L. saksenae, Myrothecium sp., and Simplicillium sp. contain insecticidal compounds, clogging the insect spiraculum, antifeedant, repellant, and antimicrobial.