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All Journal Plantropica: Journal of Agricultural Science Journal of Tropical Plant Protection AGRIVITA, Journal of Agricultural Science Jurnal HPT (Hama Penyakit Tumbuhan) AGROINOTEK
Tita Widjayanti
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Agriculture, Biological Sciences & Forestry

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The Influence of Trap and Refugia Plants on Populations and Attacks of Leaf-Miner Flies Liriomyza sp. on Shallots Cultivation Setiawati, Lia; Mudjiono, Gatot; Widjayanti, Tita
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.1

Abstract

Leaf miners (Liriomyza sp.) are one of the pests affecting shallot plants. Attacks by Liriomyza sp. on shallot plants lead to tuber rot and leaves drying out, resembling burn damage. One control method is to utilize trap plants and refugia. Trap plants are specific species that attract pests, diverting them from the main crop. Refugia, on the other hand, are areas where pests can seek shelter, reducing their impact on the main crop. This study aimed to assess the impact of trap plants and refugia on the population and attacks of Liriomyza sp. in shallot crops. The research was conducted from June to September 2021 at the experimental field of the Faculty of Agriculture in Jatimulyo Village, Lowokwaru District, Malang City, East Java. Observation parameters included the population of Liriomyza sp., damage intensity, population of natural enemies, plant height, and number of leaves. The results indicated that different types of trap plants significantly influenced the population of Liriomyza sp. and damage intensity compared to the control treatment. However, different trap plant types did not significantly affect the population of natural enemies. The natural enemies identified included Vespidae, Coenosia sp., and Opius sp. Additionally, various trap plant types did not significantly impact plant height and the number of leaves.
The Effectiveness Test of Trichoderma harzianum, Mycorrhiza and Bacteria B8 on the Growth of Phytophthora nicotianae in Pineapple Plants (Ananas comosus L. Merr) at PT.Great Giant Pineapple Larasati, Candra Violita; Syamsulhadi, Mochammad; Widjayanti, Tita
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.5

Abstract

This study aims to determine the potential of biological agents to inhibit the pathogen P.  nicotianae that causes liver rot and the effect of biological agents on the growth of pineapple plants at PT. Great Giant Pineapple. The research was carried out at the Experimental Field and Research and Development Protection Laboratory of PT. Great Giant Pineapple, Terbanggi Besar, Central Lampung from September to November 2022. The research was carried out in several stages, namely the preparation stage and the implementation stage. The preparation stage includes land preparation, breeding and application of T. harzianum, preparation of liquid culture of T. harzianum and B8 bacteria, dipping crowns, and selection of crowns and tagging. While the implementation phase includes planting, application of T. harzianum, mycorrhiza, and B8 bacteria, observation of disease occurrence level, antagonist test, observation of new leaf growth, and plant observation. The data obtained were analyzed using the T-test, which compared the control plot with the treatment plot (T. harzianum, mycorrhiza, and B8 bacteria). The results showed that the application of the biological agent T. harzianum had a significant effect on suppressing the pathogen P. nicotianae that causes heart rot in pineapple plants in vitro. In addition, the application of T. harzianum, mycorrhiza, and B8 bacteria significantly affected the growth of the number of tillers, d-Leaf height, and d-Leaf index.
The Effectiveness of Three Strains of Beauveria bassiana (Balsamo) Vuillemin Isolate with Different Densities and Tobacco Leaf Extract on Plutella xylostella Linnaeus (Lepidoptera: Plutellidae) Hadi, Mochammad Syamsul; Siringoringo, Intan; Widjayanti, Tita; Setiawan, Yogo
Plantropica: Journal of Agricultural Science Vol. 8 No. 1 (2023)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/10.21776/ub.jpt.2023.008.1.9

Abstract

This study aims to determine the pathogenicity and feeding inhibition of three B. bassiana isolate strains with different densities and concentrations of EDT (Tobacco Leaf Extract) in controlling P. xylostella. Research conducted in the Lab. Brenjonk Biological Agency and Lab. BPTPH Pasuruan from October to December 2022. This study used a Randomized Block Design (RAK) to examine the mortality and feeding inhibition of B. basiana and EDT strain isolates against P. xylostella. And probit analysis to find out the LC50 value and LT50 value. In this study, there were 17 treatments consisting of 15 larvae in each treatment and 4 repetitions were carried out. The results showed that the highest mortality percentage of P. xylostella was found in B. bassiana isolates of Bojonegoro and Jatisari strains at densities of B. bassiana 108 and 1010. The lowest LC50 value of B. bassiana isolates was the Bojonegoro strain and the EDT LC50 value was 43.79 ml/lt. Meanwhile, the lowest LT50 value was found in the EDT treatment at 28.40 hours. Based on the test results, it was also known that B. bassiana and EDT had potent feeding inhibition against P. xylostella. However, the use of EDT in controlling P. xylostella was less effective and efficient than the application of B. bassiana.
Exploration of Symbiont Bacteria Potentially Degrading Chlorpyrifos Insecticide in the Digestive Tract of Beet Armyworm (Spodoptera exigua) in Kediri Regency Widjayanti, Tita; Hadi, Mochammad Syamsul; Tantri, Zalfa Meiska
Plantropica: Journal of Agricultural Science Vol. 8 No. 2 (2023)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpt.2023.008.2.10

Abstract

Spodoptera exigua Hubner (Lepidoptera: Noctuidae) is an important pest on shallot crops and cosmopolitan with a fast life cycle. In controlling S. exigua farmers use chemical insecticides such as chlorpyrifos. Intensive application of insecticides causes resistance of S. exigua. Resistance can occur due to several factors, one of which is biological factors. In biological factors, there is a symbiosis between pests and beneficial bacteria called symbiont bacteria. It is suspected that symbiont bacteria symbiotic with S. exigua can degrade chlorpyrifos. The research was conducted from December 2022 to May 2023. The research began with a site survey and sampling in three sub-districts in Kediri Regency, namely Plemahan District, Kepung District, and Badas District. Furthermore, samples of S. exigua were studied at the Pesticide Toxicology Laboratory, Brawijaya University. The research conducted includes (1) exploration, isolation, and purification of symbiont bacteria in the digestive tract of S. exigua, (2) bioassay test of symbiont bacteria that have the potential to degrade chlorpyrifos, and (3) characterization of bacteria that have the potential to degrade chlorpyrifos. The results of the exploration of symbiont bacteria in the digestive tract of S. exigua obtained as many as 45 isolates of bacteria capable of growing in NA + chlorpyrifos media. Furthermore, from bioassay testing, 14 isolates of bacteria that have the potential to degrade chlorpyrifos insects. The characterization results showed that bacterial isolates that have the potential to degrade chlorpyrifos insecticides come from the genera Pantoea, Erwinia, and Coryneform.
Pemanfaatan Agens Hayati untuk Pengendalian Penyakit Tanaman Apel di Madiredo, Pujon Raharjo, Bambang Tri; Puspitarini, Retno Dyah; Hadi, Mochammad Syamsul; Sektiono, Antok Wahyu; Widjayanti, Tita; Taufiqurrahman, Achmad Fitriadi
AGROINOTEK Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 1 (2024)
Publisher : Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.agroinotek.2024.005.01.04

Abstract

Kecamatan Pujon, Kabupaten Malang, merupakan salah satu sentra penghasil apel yang mengalami tantangan dalam budidaya apel akibat penggunaan sistem pertanian konvensional yang bergantung pada pupuk kimia dan pestisida. Hal ini menyebabkan penurunan kualitas lahan, resistensi Organisme Pengganggu Tanaman (OPT), serta meningkatnya biaya produksi. Kegiatan pengabdian masyarakat yang dilakukan oleh Tim dosen Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Brawijaya bertujuan untuk meningkatkan pengetahuan petani apel di Desa Madiredo melalui sosialisasi dan penerapan teknologi ramah lingkungan, khususnya pemanfaatan agens hayati. Kegiatan ini meliputi survei lahan, pelatihan, diskusi, dan praktek langsung aplikasi agens hayati. Materi utama yang disampaikan mencakup pengelolaan OPT secara terpadu, pemanfaatan agens hayati, serta aplikasi yang tepat dan bijaksana. Hasil kegiatan menunjukkan antusiasme tinggi dari petani peserta yang diukur melalui diskusi interaktif dan pre-test. Tantangan utama meliputi kondisi tanaman yang tua, fluktuasi harga apel, dan rendahnya produktivitas akibat serangan OPT serta penurunan kesuburan tanah. Dengan pendekatan sistematis melalui sekolah lapang, kegiatan ini berhasil meningkatkan kesadaran petani terhadap pentingnya praktik pertanian berkelanjutan. Diharapkan, pendampingan ini menjadi pondasi untuk mewujudkan sistem pertanian apel yang ramah lingkungan dan berkelanjutan.
Manajemen Agroekosistem Berbasis Ecological Engineering pada Tanaman Padi di Kecamatan Genteng Kabupaten Banyuwangi Hadi, Mochammad Syamsul; Sektiono, Antok Wahyu; Rahardjo, Bambang Tri; Widjayanti, Tita; Taufiqurrahman, Achmad Fitriadi; Putra, Dian Nugraha Harry
AGROINOTEK Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 1 (2024)
Publisher : Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.agroinotek.2024.005.01.08

Abstract

ABSTRAKKecamatan Genteng, Kabupaten Banyuwangi merupakan salah satu Kec. dengan komoditas utama padi, dan menjadi binaan Fakultas Pertanian Universitas Brawijaya. Salah satu masalah penting yang dihadapi petani padi di Kecamatan Genteng adalah hama wereng batang coklat dan tikus yang menyebabkan kehilangan hasil cukup besar. Petani belum memiliki kemampuan mengelola hama-hama tersebut, terlihat dari tingkat kejadian gagal panen yang tinggi yang diakibatkan oleh serangan hama. Pada tahun 2018 ini sedang dilaksanakan program Sekolah Lapangan Sistem Pertanian Berlanjut Berbasis Padi (SL-SPB) dalam rangka peningkatan produksi padi yang berlanjut dengan penerapan manajemen agroekosistem. Sekolah Lapang melibatkan tiga unsur pengelolaan secara harmonis, yaitu pengelolaan pertanaman, pengelolaan tanah, dan pengelolaan hama penyakit secara terpadu. Pada kegiatan SL tersebut diberikan materi topik khusus untuk meningkatkan pengetahuan petani dalam pengelolaan tanaman padi. Oleh karena itu dalam kegiatan ini dilakukan pelatihan pengelolaan hama-hama penting pada tanaman padi yang merupakan topik khusus bagian dari SL-SPB. Diharapkan dari pelatihan ini petani padi di Kecamatan Genteng, Kabupaten Banyuwangi menjadi terlatih dalam mengelola hama pada tanaman padi yang efektif, berlanjut dan melestarikan daya dukung sumber daya alam (lingkungan) terhadap tanaman padi di lapangan.
Pemberdayaan Petani Cabai Rawit melalui Diseminasi Teknologi Agens Hayati di Kecamatan Bancar, Kabupaten Tuban Widjayanti, Tita; Taufiqurrahman, Achmad Fitriadi; Abidhin, M. Zainal
AGROINOTEK Jurnal Penelitian dan Pengabdian Masyarakat Vol. 6 No. 1 (2025)
Publisher : Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.agroinotek.2025.006.01.06

Abstract

Cabai rawit (Capsicum frutescens) merupakan salah satu komoditas hortikultura strategis yang rentan terhadap serangan Organisme Pengganggu Tanaman (OPT). Di Kecamatan Bancar, Kabupaten Tuban, permasalahan utama budidaya cabai rawit mencakup serangan hama dan penyakit serta tingginya ketergantungan petani terhadap pestisida kimia. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kapasitas petani dalam pengendalian OPT secara ramah lingkungan melalui diseminasi teknologi agens hayati. Metode pelaksanaan menggunakan pendekatan edukatif-partisipatif, meliputi penyuluhan, pelatihan teknis, praktik perbanyakan mikroba, dan pendampingan aplikasi di lapangan. Mikroba yang digunakan antara lain Trichoderma sp., Beauveria bassiana, Pseudomonas fluorescens, Azospirillum sp., dan Azotobacter sp. Hasil kegiatan menunjukkan peningkatan pemahaman dan keterampilan petani dalam produksi serta penggunaan agens hayati sebagai alternatif pengendalian penyakit tanaman. Petani mampu membuat media perbanyakan secara aseptis dan berhasil menginokulasi mikroba dengan tingkat kontaminasi rendah. Selain itu, kegiatan ini juga menghasilkan terbentuknya laboratorium mini sebagai sarana produksi dan pembelajaran berkelanjutan di tingkat kelompok tani. Pendekatan ini sejalan dengan prinsip pengelolaan agroekosistem berbasis ecological engineering, yang menekankan penggunaan input lokal, pengurangan bahan kimia sintetis, dan penguatan kelembagaan petani. Kegiatan ini menunjukkan bahwa diseminasi teknologi agens hayati berbasis partisipatif efektif dalam mendukung praktik budidaya cabai rawit yang lebih berkelanjutan, serta berpotensi direplikasi di wilayah lain dengan tantangan serupa.
Co-Authors Abidhin, M. Zainal Akhmad Rizali Bambang Tri Rahardjo Bambang Tri Raharjo Eva Febriyanti Fitriyah, Vebriyanti Gatot Mudjiono Hastawulan, Anastassia Wita Aryandini Joko Siswanto Julia Putri Pramudita Larasati, Candra Violita Mahendra, Niko Mochammad Syamsul Hadi Prayogo, Bagas Agung Putra, Dian Nugraha Harry Restikasari, Viera Annisa Retno Dyah Puspitarini Rina Rachmawati Rosandy, Devia Fitri Sektiono, Antok Wahyu Septiani, Rohma Wulan Setiawati, Lia Siringoringo, Intan Sri Karindah Syamsulhadi, Mochammad Tantri, Zalfa Meiska Taufiqurrahman, Achmad Fitriadi Yogo Setiawan Yolla Frinsiska Rama