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Journal : agroprimatech

Test Potential of Selected Biological Control Fungi Against Phyllosticta zingiberi Under Laboratory Conditions Martha Adiwaty Sihaloho; Hapsoh; Hasanuddin
Agroprimatech Vol. 9 No. 2 (2025): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v9i2.8050

Abstract

Leaf spot disease is one of the major constraints in red ginger (Zingiber officinale Rosch) cultivation, causing necrosis on leaves that reduces photosynthetic capacity and rhizome productivity. This study evaluated the antagonistic activity of four biological control agents Trichoderma koningii, Trichoderma harzianum, Gliocladium spp., and Gliocladium virens, against Phyllosticta zingiberi under in vitro conditions. The experiment was conducted at the Plant Pathology Laboratory, Faculty of Agriculture, University of Sumatera Utara, Medan, from January to March 2010. A Completely Randomized Design (CRD) with five treatments and five replications was used. The results showed that the highest growth inhibition was observed in Gliocladium spp. (46.23%) and T. harzianum (46.15%), followed by T. koningii (41.38%) and G. virens (27.24%). The control exhibited the lowest inhibition (6.43%). The observed suppression is attributed to mechanisms including mycoparasitism, production of antifungal metabolites, and competition for space and nutrients. The findings indicate that Gliocladium spp. and T. harzianum are the most effective biological control agents for managing leaf spot disease in red ginger
BIOLOGICAL CONTROL OF LEAF SPOT DISEASE (Phyllosticta zingiberi) ON RED GINGER (Zingiber officinale Rosc.) USING BIOCONTROL AGENTS Martha Adiwaty Sihaloho; Hapsoh; Hasanuddin
Agroprimatech Vol. 10 No. 1 (2026): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v10i1.8510

Abstract

Leaf spot disease is one of the major constraints in red ginger (Zingiber officinale Rosc.) cultivation, causing significant economic losses to farmers and reducing national export value. The disease is suspected to be seed-borne, as the pathogen can survive in infected planting materials. This study aimed to evaluate the effectiveness of the biocontrol fungi Trichoderma koningii, T. harzianum, Gliocladium spp., and G. virens in suppressing Phyllosticta zingiberi, the causal agent of leaf spot disease.. Additionally, the study assessed different application methods of biocontrol agents in controlling the disease. The study was conducted at the Experimental Field of the Faculty of Agriculture, Universitas Amir Hamzah, Medan Estate Village, Percut Sei Tuan District, Deli Serdang Regency, at an altitude of approximately 25 m above sea level, from January to August 2010. The study consisted of two main stages: (1) identification of the causal pathogen of leaf spot disease in red ginger, and (2) in vitro antagonistic testing of biocontrol agents against P. zingiberi. The results showed that the application of antifungal suspension of Gliocladium virens on leaves was relatively more effective in inhibiting the growth of P. zingiberi compared to other tested biocontrol agents
Co-Authors ,, Wardati Adiwirman Adiwirman, Adiwirman Adnan Kasri Agus Sutikno Ahmad Sobirin Al Ichsan Amri, Al Ichsan Alex Andriadi Harahap Alif Hadi Ariansyah Amrul Khoiri Andri Sulistyani Anjani Kelana P Ardhi Yusuf Arnis En Yulia Arnisa En Yuli Astri Helga Sianipar Atrisina Allamah Azman Azman Bambang Sapta Purwoko Barus, Rizki Al Khairi Benny Heltonika Besri Nasrul Dani, Isna Rahma DAULAY, MUHAMMAD ROIHAN David Panusunan Natanael Delita Zul Desi Heltina Desita Salbiah Diansyah, Asty Didy Sopandie Dini, Isna Dodik Ridho Nurrochmat Erlida Ariani Erlindawati Lumban Toruan Evi Sribudiani Fachri Harisy Fachry Abda El Rahman Fanny Septya Febrianti, Berliana Fernando Situmorang Fetmi Silvina Fifi Puspita Firdaus Amir Gian Sapta Adrialin Gulat ME Manurung Gunawan Tabrani Gusmawartati Hairunisa, dan Hamidah Hanum Hapzi Ali Hasanuddin Hasibuan, Nova Artha Nikma Henry ' Simatupang Ike Ramadhona Ilham M Ilham M Ima Hartanti Isna Dini Isna Rahma Isna Rahma Dini Jamil, Zamzam Lukmanul Kezia Eunika Manurung Laksono Trisnantoro Leyna, Zulfa Linda Tri Wira Astuti Luthfi Aziz Mahmud Siregar M .Ridha Pahlipi M Shabrina, Hilma Maemunah Maemunah Maisya, Elani Mandataris Mardiana Mardiana Martha Adiwaty Sihaloho Masjudi, Heri Mayardika, Sinta Muhammad Ali Muhammad Yusuf Muhammad Yusuf Mukti, Ririn Virintia Murniati Mustika, Syuri Muttakin, Ahmad Nainggolan, Gideon Nanda Mayani Nasution, Karnada Nisa Azzahra Gusviani Nursiani Lubis Nurul Qomar Okta Karneli, Okta Petrus Sihombing Prima Andreas Siregar Pujianto Pujianto R. Reza Arisma Rachmad Saputra RAHEL KABURUAN Rahma Devi Rangkuti, Muhammad Syaid Ranuda, Rendika Ririn Safitry Rony, Zahara Tussoleha Saefumillah, Sansan Sembiring, Rinawati Seno Andri Septi Sahtayani Tarigan Shanti Fitriani Sianipar, Astri Helga Sitepu, Erik Ananta Siti Aisyah Sofyan Husein Siregar Sri Sri Yoseva sriwahyuni Sriwahyuni Suci Rahmayuni Sudirman Yahya Sukatin, Sukatin Sukendi Sukendi Susanti, Selvi Sutikno, Sigit Suwantua- T, Boni Vasius Syofiatul Safitri T. M. H. Oelim Tandiono, Joko Tanjung, Ramadan Tengku Chairun Nisa TEUKU MUHAMMAD HANAFIAH OELIM Thamrin Toni Sutrisno Trisla Warningsih Tumangger, Rinaldi Fransisko Vera Nursari Warda Putra Dinata Rambe Wawan Wawan Wawan Wawan Wawan Wedia Simanjuntak, Wedia Wira Hadi Yanuar, Annisa Yaya Hasanah Yundari, Yundari Yunihadi Indra Rahadi Yusmarini Zulhammi