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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Forum Pasca Sarjana Agrikultura Jurnal Penelitian Hutan Tanaman Agrovigor: Jurnal Agroekoteknologi AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Agrotek Tropika Jurnal Entomologi Indonesia Buletin Palma Jurnal Risalah Kebijakan Pertanian dan Lingkungan SEAS (Sustainable Environment Agricultural Science) PERTANIAN TROPIK

Hermanu Triwidodo

Department Of Plant Protection, Faculty Of Agriculture, IPB University Jln. Kamper, Kampus IPB Dramaga, Bogor, West Java 16680 Indonesia

Author-ID : 280503

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Medicine & Pharmacology Social Sciences

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HAMA TANAMAN BELIMBING DI WILAYAH KABUPATEN BLITAR JAWA TIMUR Muhlison, Wildan; Triwidodo, Hermanu; ., Pudjianto
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (19.933 KB)

Pests of star fruit in Blitar District, East Java. Pest attack causes the production of star fruit decreases. This study aim was to identify the pests of star fruit in Blitar District which could provide an information about pest species, damage symptoms and damage intensity. The research was conducted during August â September 2014 in Gogodeso, Karangsono and Pojok Villages at Blitar District, East Java. Observations of the pests ware done by determining the four locations of plantation on each villages randomly. Three plants sample were choosen in each plantation location diagonally. Each plant was divided into four quadrant according to wind directions. One branch in the bottom was choosen in each quadrant. Nine species were recorded as pests of starfruit in Blitar district. Pest was identified on the leaf was Pteroma plagiophleps, on the branch was Zeuzera coffeae, on the flower were Toxoptera aurantii and Maconellicoccus hirsutus, whereas those on the fruit were Toxoptera aurantii, Maconellicoccus hirsutus, Thrips javanicus, Helopeltis bradyi, CryptophlebiaÂ leucotreta, Bactrocera dorsalis, and Bactrocera carambolae. The population density of M. hirsutus was higher in Karangsono than in other villages. The highest damage intensity was caused by Bactrocera spp., C. leucotreta and H.Â bradyi (occured in Gogodeso), whereas the highest damage intensity of T. javanicus occurred in Pojok.

Pests of star fruit in Blitar District, East Java. Pest attack causes the production of star fruit decreases. This study aim was to identify the pests of star fruit in Blitar District which could provide an information about pest species, damage symptoms and damage intensity. The research was conducted during August â September 2014 in Gogodeso, Karangsonoand Pojok Villages at Blitar District, East Java. Observations of the pests ware done by determining the four locations of plantation on each villages randomly. Three plants sample were choosen in each plantation location diagonally. Each plant was divided into four quadrant according to wind directions. One branch in the bottom was choosen in each quadrant. Nine species were recorded as pests of starfruit in Blitar district. Pest was identified on the leaf was Pteroma plagiophleps, on the branch was Zeuzera coffeae, on the flower were Toxoptera aurantii and Maconellicoccus hirsutus, whereas those on the fruit were Toxoptera aurantii, Maconellicoccus hirsutus, Thrips javanicus, Helopeltis bradyi, Cryptophlebia leucotreta, Bactrocera dorsalis, and Bactrocera carambolae. The population density of M. hirsutus was higher in Karangsono than in other villages. The highest damage intensity was caused by Bactrocera spp., C. leucotreta and H. bradyi (occured in Gogodeso), whereas the highest damage intensity of T. javanicus occurred in Pojok.

KOMUNITAS HYMENOPTERA PARASITOID PADA AREAL HUTAN SAGU (METROXYLON SPP.) DI MALUKU [COMMUNITY OF HYMENOPTEROUS PARASITOID ON SAGO FOREST AREA (METROXYLON SPP.) IN MALUKU] Senewe, Rein Estefanus; Triwidodo, Hermanu; Pudjianto, Pudjianto; Rauf, Aunu
Buletin Palma Vol 18, No 1 (2017): Juni, 2017
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bp.v18n1.2017.9-21

Sago (Metroxylon sagu Rottb) in Maluku grow naturally to form sago forest ecosystem. Hymenoptera in the sago forest ecosystem has not been studied. This study aims to examine the diversity of Hymenopterous parasitoids in sago forests in Maluku. The research was conducted in Ariate, Eti, Waisamu, Rutong, Tawiri, and Tulehu in September 2015 - October 2016. Hymenopterous parasitoids were collected through swing nets, light traps, yellow pan traps, and pitfall traps. Results the abundance of hymenopterous parasitoids in six sago areas in Maluku was found to be 14 families and 32 species. The morphoses of morphospecies are 68 morphospecies of Sago Ariate forest 32 morphospecies, Eti 37 morphospecies, Waisamu 9 morphospecies, Rutong 11 morphospecies, Tawiri 19 morphospecies, and Tulehu 37 morphospecies. The high diversity index (2.18 - 3.55) per location, Morphospesies wealth of Tulehu is higher than other location, while the individual abundance of Ariate is higher than other villages. The average relative abundance of Scelionidae, Scoliidae and Ichneumonidae families was higher by 26.46%, 15.95%, and 10.89%, respectively. There are three families with high morphospecies and individual abundance in each sago area ie Scoliidae in sago forest area of Ariate and Waesamu, Scelionidae on Rutang, Eti, and Tawiri sago wood area, while Eulophidae on sago Tulehu area. There are 12 unique species or species with only certain locations and none in other locations, each Ariate (2 species), Eti (2 species), and Tulehu (8 species).ABSTRAKSagu (Metroxylon spp.) merupakan tanaman sosial, budaya dan ekonomi di Maluku dengan potensi hutan sagu cukup tersedia. Teridentifikasi gejala kerusakan empulur pati dan tajuk tanaman sagu akibat serangga. Kebijakan pengendalian hayati melalui pelepasan parasitoid dalam sistem aplikasi Pengendalian Hama Terpadu merupakan salah satu alternatif. Hymenoptera parasitoid pada ekosistem hutan sagu penting untuk dipelajari morfospesiesnya sebagai data dan informasi ilmiah dalam menunjang program pengembangan agens hayati dalam pengelolaan serangga herbivor tanaman sagu. Penelitian ini bertujuan untuk mengkaji keanekaragaman Hymenoptera parasitoid pada hutan sagu di Maluku. Dalam penelitian ini dipilih tiga lokasi di Pulau Ambon dan tiga lokasi di Pulau Seram, kemudian masing-masing lokasi dipilih tiga rumpun sagu contoh secara acak. Setiap rumpun sagu dalam lingkaran radius 5m dari pohon sagu utama seluas 100m2 dilakukan pengambilan serangga melalui jaring serangga, perangkap lubang, dan perangkap nampan kuning, sedangkan perangkap lampu dilakukan pada satu titik disetiap lokasi. Pengambilan serangga dilakukan pada musim kemarau dan hujan dibulan September 2015 ? Oktober 2016. Hasil penelitian menunjukkan bahwa kelimpahan Hymenoptera parasitoid pada enam lokasi hutan sagu diperoleh sebanyak 14 famili dan 30 morfospesies. Kekayaan morfospesies disetiap lokasi berkisar antara 5-21 morfospesies, dengan proporsi koleksi serangga melalui penggunaan jaring serangga lebih tinggi. Indeks keanekaragaman tinggi (2.18 ? 3.55) per lokasi, kelimpahan individu di Ariate dan kekayaan morfospesies di Tulehu masing-masing lebih tinggi dari lokasi lainnya. Rata-rata kelimpahan relatif famili Scelionidae, Scoliidae, dan Ichneumonidae masing-masing 26.46%, 15.95%, dan 10.89%. Terdapat 12 spesies unik masing-masing Ariate (dua spesies), Eti (dua spesies), dan Tulehu (delapan spesies). Scelionidae, Scoliidae, Ichneumonidae dan Eulophidae merupakan kelompok parasitoid telur-larva potensial yang terindikasi berasosiasi dengan serangga herbivor pada tanaman sagu dari ordo Coleoptera dan Orthoptera.

THE ABUNDANCE AND DIVERSITY OF THRIPS (THYSANOPTERA: THRIPIDAE) ON CHILI (CAPSICUM ANNUUM L.) AND CAYENNE (CAPSICUM FRUTESCENS L.) IN BOGOR Hutasoit, Rudi Tomson; Triwidodo, Hermanu; Anwar, Rully
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 19, No 1 (2019): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.11933-41

The Abundance and Diversity of Thrips (Thysanoptera: Thripidae) on Chili (Capsicum annuum L.) and Cayenne (Capsicum frutescens L.) in Bogor. This research aimed to study the abundance and diversity of thrips on chili pepper and cayenne pepper plants. Observation of thrips was conducted on chili pepper and cayenne pepper in fourteen sites in four different locations in Bogor that are: Dramaga, Cibungbulang, Tenjolaya, and Cisarua. Thrips were collected from leaves and flowers from 10 plant samples that had been selected randomly. The thrips were identified and the number of thrips were calculated. The abundance of adults, nymphs, and total of thrips on the flowers of chili pepper was 0.39, 0.01, and 0.40 thrips/flower respectively. Meanwhile, the abundance of adults, nymphs, and total of thrips on the flowers of cayenne pepper was 0.36, 0.02, and 0.38 thrips/flower respectively. The abundance of adults, nymphs, and total of thrips on the leaves of chili pepper was 0.68, 0.12, and 0.81 thrips/twiq respectively. Meanwhile, the abundance of adults, nymphs, and total of thrips on the leaves of cayenne pepper was 0.47, 0.14, and 0.61 thrips/twiq respectively. Four species of thrips were found infesting flowers of chili pepper and cayenne pepper i. e. Thrips parvispinus, T. hawaiiensis, Scirtothrips dorsalis, and Haplothrips gowdeyi. Species of T. parvispinus, T. hawaiiensis, S. dorsalis belong to suborder of Terebrantia family Thripidae, meanwhile H. gowdeyi belongs to suborder Tubulifera family Phlaeothripidae. T. parvispinus is the most dominant species found infesting flowers and leaves of the chilli pepper and cayenne pepper were 71% and 56 %.

Functional Group of Spiders in Cultivated Landscape Dominated by Paddy Fields in West Java, Indonesia I WAYAN SUANA; DEDY DURYADI SOLIHIN; DAMAYANTI BUCHORI; SJAFRIDA MANUWOTO; HERMANU TRIWIDODO; CHRISTIAN HANSJOACHIM SCHULZE
HAYATI Journal of Biosciences Vol. 16 No. 1 (2009): March 2009
Publisher : Bogor Agricultural University, Indonesia

Distribution of spiders in all colonized environments is limited by biotic and abiotic factors requiring adaptations with respect to, for example microhabitat choice and hunting behavior. These two factors were frequently used to group spiders into functional groups. In this study our objectives were to (i) group of genera of spiders into functional group based on their microhabitat specificity, hunting behavior, and daily activity; and (ii) compare the number and composition of functional group of spider at each habitat type and period of paddy growth. The study was conducted at a landscape dominated by paddy fields in Cianjur Watershed for a period of 9 months. Four different habitat types (paddy, vegetable, non-crop, and mixed garden), were sampled using five trapping techniques (pitfall traps, farmcop suction, sweep netting, yellow-pan traps, and sticky traps). The Unweighted Pair-Group Average and the Euclidean Distances were used to generate dendrogram of functional group of spider. We found 14 functional groups of spider at genus level. The number of functional group of spider at four habitat types was differing, but the composition was similar, because all habitats were closed to each other. Habitat structure diversity and disturbance level influenced the number of functional group of spider. Different architecture of vegetation and availability of differ prey during paddy growth, causing the composition of functional group of spider in each period of paddy growth was changed, although its number was unchanged. Key words: spiders, functional group, agricultural landscape, Cianjur Watershed

Arthropoda yang Berasosiasi dengan Tanaman Refugia pada Pertanaman Padi di Desa Besur, Kabupaten Lamongan, Jawa Timur Fathan Hadyan Rizki; Nina Maryana; Hermanu Triwidodo
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 1 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.1.15

Rice farmers in Besur Village planted four species of refugia plants around rice plants to enhance biological control as a part of Healthy Plant Management Program. These refugia plants were flowering plants i.e., Cosmos sulphureus, Helianthus annuus, Zinnia elegans, and Sesamum indicum. The objective of this research was to observe the Arthropods associating with these refugia plants. This research was conducted in December 2017 to March 2018 at Besur Village, Lamongan District, East Java Province. Samples were obtained from each refugia species by branches beating, sweep net, pitfall trap, and direct observation method in the vegetative, generative, and postharvest periods paddy plant. The results showed that Arthropods associated with refugia plants are mostly belong to the order of Diptera, Hymenoptera, and Araneae. Detritivore group was the most abundant in all periods. Analysis of the diversity and similarity of all refugia species showed moderate to high values with high similarities each other. Keywords: beneficial insect, flower, healthy plant management, integrated pest management, paddy field

Analisis Kinerja Petugas Pengendali Organisme Pengganggu Tumbuhan di Kabupaten Subang Amir Mahmud; Hermanu Triwidodo; Ali Nurmansyah
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 3 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.3.392

Petugas pengendali organisme pengganggu tumbuhan (OPT) pegawai negri sipil memiliki tugas pokok dan fungsi melakukan pengamatan, pengendalian OPT dan dampak perubahan iklim. Provinsi Jawa Barat hanya memiliki 122 orang petugas pengendali organisme pengganggu tumbuhan pegawai negri sipil, 123 orang petugas pengendali organisme pengganggu tumbuhan tenaga harian lepas yang membawahi 626 kecamatan. Jumlah tersebut setiap tahunnya akan terus berkurang, sehingga wilayah pengamatan setiap petugas akan menjadi lebih luas yang berakibat menurunnya tingkat efisiensi, akurasi, dan efektivitas pengamatan di lapangan. Penelitian ini bertujuan mengevaluasi kinerja petugas POPT di era digital saat ini dalam melakukan pengamatan dan peramalan OPT. Metode penelitian yang digunakan adalah metode penentuan responden berdasarkan teknik purposive sampling, responden merupakan petugas POPT dengan jumlah 30 petugas. Hasil wawancara dianalisis secara deskriptif melalui metode Analytical Hierarchy Process (AHP) menggunakan software Expert Choice. Hasil penelitian menunjukkan bahwa keberadaan Petugas pengendali organisme pengganggu tumbuhan di Kabupaten Subang saat ini didominasi petugas yang berumur 21-30 tahun, pendidikan SMK/SMA dan S1, rata-rata pengalaman 5-10 tahun, dan status jabatan fungsional terbesar pada tenaga harian lepas. Analisis AHP menunjukkan kinerja petugas dipengaruhi oleh tiga faktor dengan rasio konsistensinya 0,02, yaitu pelaporan dengan bobot prioritas 16%, fasilitas 15,6%, dan pengalaman 13,4%.

Keanekaragaman Serangga Fitofag pada Sengon Falcataria moluccana (Miq.) Barneby & J.W. Grimes dari Jawa dan Hawaii di Persemaian di Bogor Yendra Pratama Setyawan; Purnama Hidayat; Hermanu Triwidodo; Kenneth Puliafico
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 4 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.4.490

Albizia (Falcataria moluccana) cultivated in Indonesia for timber plantations can increase the farmer’s income, even though albizia became an invasive alien species that can cause the economic and ecological losses. The controlling of invasive species using biological control is an effective method. The purpose of this study was to determine the phytophagous insects on albizia from Java and Hawaii in seedling in Bogor. The experiment was conducted in Carangpulang, Dramaga, Bogor. The experiment was arranged in a completely randomized block design using seed origin as a treatment (albizia Java and Hawaii) with 4 replicates. Total number of tree sample was 160 trees. Observations were conducted every 2 weeks until 32 weeks after planting. Identification of insects was conducted in the Laboratory of Insect Biosystematics, IPB. A total of 67 phytophagous insects were collected, 57 species in albizia from Java and 54 species in albizia from Hawaii. There was no difference in abundance and diversity of phytophagous insects on albizia from Java and Hawaii. Larvae of Eurema blanda (Lepidoptera: Pieridae) became an important pest causes leaf defoliation. Furthermore, Hulodes caranea (Lepidoptera: Noctuidae), Margarodes sp. (Hemiptera: Margarodidae), Choristoneura sp. (Lepidoptera: Tortricidae), and Adoxophyes sp. (Lepidoptera: Tortricidae) identified as important pests that have not been reported in the other research. Keywords: albizia, defoliator insect, Fabaceae, important pests, invasive alien species

Kanker Batang: Penyakit Baru pada Kopi di Lampung Suryo Wiyono; Andika Septiana Suryaningsih; Ali Wafa; Efi Toding Tondok; Bonjok Istiaji; Hermanu Triwidodo; Widodo Widodo
Jurnal Fitopatologi Indonesia Vol 15 No 1 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Stem Canker: A New Disease of coffee in LampungStem cancer is a new disease that has attacked smallholder coffee plantations in Lampung since 2010. The cause of the disease was unknown. This study aims to describe the symptoms of the disease, the incidence of the disease in the affected plantation, and identify morphologically and molecularly the canker pathogens of the coffee stem canker diseases. All stages of Koch’s postulate were carried out in laboratories and greenhouses. The isolated pathogens were morphologically characterized by colony shape and color as well as the conidia shape and size. Molecular identification was carried out by using a general primer (ITS1 and ITS4) and followed by sequencing. The main symptoms of the disease are stem cancer and dieback, as well as more infecting older plants. Pathogen of the coffee stem canker disease that attacks coffee plants in Lampung has been identified as Fusarium solani which has 99% homology with F. solani KY245947.1.

MENGELOLA LEDAKAN HAMA DAN PENYAKIT PADI SAWAH PADA AGROEKOSISTEM YANG FRAGIL DENGAN PENGENDALIAN HAMA TERPADU BIOINTENSIF Suryo Wiyono; . Widodo; Hermanu Triwidodo
RISALAH KEBIJAKAN PERTANIAN DAN LINGKUNGAN Rumusan Kajian Strategis Bidang Pertanian dan Lingkungan Vol 1 No 2 (2014): Agustus
Publisher : Pusat Studi Pembangunan Pertanian dan Pedesaan (PSP3)

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

Tingkat penggunaan pestisida pada padi sawah telah membuat agroekosistem padi sawah menjadi fragil, yang ditandai dengan makin seringnya ledakan hama dan penyakit pada 10 tahun terakhir di Pulau Jawa. Pengendalian Hama Terpadu Biointensif (PHT BI) merupakan suatu integrasi teknik terbaik (best practices) dalam pengelolaan hama dan penyakit padi didasari pada optimalisasi faktor pengendali hayati dan alami, serta pengelolaan kesehatan tanaman. Ujicobateknologi yang dikembangkan di enam lokasi pada enam kabupaten di Jawa menunjukkan bahwa PHT BI mampu mengendalikan hama dan penyakit serta meningkatkan produksi padi.

Co-Authors . Widodo Akhmad Rizali ALI NURMANSYAH Ali Wafa Amanatillah, Niky Elfa Amanda Mawan Amir Mahmud Andi Sadapotto Andika Septiana Suryaningsih Anggun Agustini Aris Kusumo Diantoro Azri Kusuma Dewi Bonjok Istiaji CHRISTIAN HANSJOACHIM SCHULZE DAMAYANTI BUCHORI Dede Dirgahayu Dede Maryana Desy Nur Avifah Dewa Gede Wiryangga Selangga DEWI SARTIAMI Dudung Darusman Dwi Andini Shiami Efi Toding Tondok Efriani, Nurul Farida Fajar Sidik Abdullah Kelana Fathan Hadyan Rizki Florentina Sri Hardiyanti Purwadhi HAJRIAL ASWIDINNOOR Harianto, Muhammad Harleni Harleni Hasmiandy Hamid Hazen Arrazie Kurniawan Husni dan Zulfanazli Pudjianto Alfian Rusdy Hutasoit, Rudi Tomson I Nengah Surati Jaya I WAYAN SUANA I Wayan Winasa Irwan Novianto Kartodihardjo, Hariadi Kenneth Puliafico Kooswardhono Mudikdjo Kooswardhono Mudikdjo Lilik Retnowati Listihani, Listihani Lukvitasari, Luna Luna Lukvitasari Luna Lukvitasari Lutfi Afifah Maizul Husna Tanjung Mappatoba Sila MARIETJE PESIRERON Marietje Pesireron Meity S. Sinaga Meity Suradji Sinaga Meliyana Meliyana Mihwan Sataral Millaty, Marosimy Muhammad Achmad Chozin Muhammad Ardiansyah Murgianto, Fitrah Najmi, Lailatun Neo Endra Lelana Niky Elfa Amanatillah Noor Farikhah Haneda NURARIATY AGUS Nurmala Katrina Pandjaitan Nurul Farida Efriani Phor Bho Ayuwati PURNAMA HIDAYAT RAUF, AUNU Rein Estefanus Senewe Retnowati, Lilik Roza Yusfiandayani Rudi Tomson Hutasoit Rully Anwar Ruly Anwar Sagala, Siti Rizkah Senewe, Rein Estefanus Senewe, Rein Estefanus Senewe, Rein Estefanus SJAFRIDA MANUWOTO Sri Utami St Nurlaela Fauziah Supramana Suryo Wiyono Susanna Susanna Syafrida Manuwoto Syafrida Manuwoto Syarifah Syarifah, Syarifah TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Tawakkal, Muhammad Iqbal Titiek Siti Yuliani Ujang Wawan Darmawan Victoria Coo Lea Widodo Widodo Widodo Widodo Wildan Muhlison, Wildan Woro Anggraitoningsih Noerdjito Yani Maharani Yendra Pratama Setyawan Yundari, Yundari Zakiah Wulandari Zulfatun Ruscitasari

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