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Exploration of Nematophagous Fungi from Coffee Rhizosphere Soil and their Potential as Biological Control Agents against Root-lesion and Root-knot Nematodes Indarti, Siwi; Aldina, Rinda Fajrin; Widianto, Donny; Prijambada, Irfan Dwidya; Maharani, Rina; Kurniasari, Irianti; Waele, Dirk De
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025): In Progress
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.102469

Root-lesion and root-knot nematodes are amongst the most important pathogens of coffee and can cause substantial yield losses and quality reductions. Environmental and health concerns concerning the use of chemical pesticides have increased the need for alternative management strategies against plant-parasitic nematodes. The aim of our study was to isolate and identify nematophagous fungi from nematode-infested coffee production areas and evaluate their potential as biocontrol agents. Our study was carried out in two stages: 1) fungi isolation and evaluation of their ability to affect eggs or vermiform developmental stages of root-lesion and root-knot nematodes; 2) identification of fungal isolates to species level. Eleven fungal isolates were able to affect either the nematode eggs or the vermiform developmental stages. The ability of these fungi to produce extracellular enzymes were also evaluated. This study highlights Indonesian nematode infected coffee rhizosphere soils as a rich source of nematophagous fungi, with eleven isolates showing promises to be used for integrated pest management strategies. Future work should assess field efficacy under local conditions while monitoring impacts on soil food webs and non-target organisms.

Biological Control of Fusarium Wilt on Tomato Using Avirulent Fusarium oxysporum f. sp. cepae Combined with Siam Weed Compost Nugroho, Bambang; Mildaryani, Warmanti; Astriani, Dian
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.94412

Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici is a major disease that results in significant yield loss in tomato production. Currently, chemical control of Fusarium wilt using fungicides has yielded unsatisfactory results and has caused negative effects. Biological control using antagonistic microorganism combined with compost is a promising and environmentally friendly alternative management method for this disease. This research aimed to evaluate the effectiveness of an avirulent Fusarium oxysporum f. sp. cepae biological agent combined with siam weed compost to manage Fusarium wilt and increase growth and yield in tomato productions. This research was conducted using a completely randomized design with two factors and three replicates. The first factor was the dose of the avirulent F. oxysporum f. sp. cepae biological agent i.e 0 (control), 80, and 100 mL/plant. The second factor was dose of siam weed compost i.e. 0 (control), 300, and 600 g/plant. Disease intensity, plant growth and yield variables were evaluated. Data collected were analyzed using an ANOVA followed with Duncan’s Multiple Range test at 95% confidence level. The results showed that the use of avirulent F. oxysporum f. sp. cepae biological agent was able to manage Fusarium wilt disease in tomato productions and increase growth and yield of tomato. The best treatment for increasing tomato yield was the combination of 100 mL/plant of avirulent F. oxysporum f. sp. cepae with 600 g/plant of siam weed compost, resulting in a yield of 110.41 g/plant.

Exploration of Nematophagous Fungi from Coffee Rhizosphere Soil and their Potential as Biological Control Agents against Root-lesion and Root-knot Nematodes Indarti, Siwi; Aldina, Rinda Fajrin; Widianto, Donny; Prijambada, Irfan Dwidya; Maharani, Rina; Kurniasari, Irianti; Waele, Dirk De
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.102469

Root-lesion and root-knot nematodes are amongst the most important pathogens of coffee and can cause substantial yield losses and quality reductions. Environmental and health concerns concerning the use of chemical pesticides have increased the need for alternative management strategies against plant-parasitic nematodes. The aim of our study was to isolate and identify nematophagous fungi from nematode-infested coffee production areas and evaluate their potential as biocontrol agents. Our study was carried out in two stages: 1) fungi isolation and evaluation of their ability to affect eggs or vermiform developmental stages of root-lesion and root-knot nematodes; 2) identification of fungal isolates to species level. Eleven fungal isolates were able to affect either the nematode eggs or the vermiform developmental stages. The ability of these fungi to produce extracellular enzymes were also evaluated. This study highlights Indonesian nematode infected coffee rhizosphere soils as a rich source of nematophagous fungi, with eleven isolates showing promises to be used for integrated pest management strategies. Future work should assess field efficacy under local conditions while monitoring impacts on soil food webs and non-target organisms.

Oviposition of Spodoptera exigua on Shallot in Monoculture and Polyculture System with Groundnuts and Cowpeas Widotami, Diarsi Atiki; Witjaksono, Witjaksono; Putra, Nugroho Susetya
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.103854

Spodoptera exigua is the main pest of shallot (Allium cepa) that cause significant damage on leaves and reduce yield. Polyculture is a potential management strategy against S. exigua by deterring their oviposition behavior. This study aims to evaluate S. exigua oviposition preference on shallots grown in monoculture or polyculture system. In the no-choice assay, shallots, groundnuts (Arachis hypogaea), and cowpeas (Vigna unguiculata) were planted alone while shallots were planted with either groundnuts or cowpeas plant in the choice assays. Observed parameters were the number of eggs laid by female S. exigua on shallot plants on each day and the total after the oviposition periods. Results showed that the number of eggs laid on shallots were significantly lower in polyculture systems (161.67 ± 96.02) compared to ones planted in monoculture systems(309.67 ± 39.70). This implies that polyculture systems between shallots with groundnuts or cowpeas can potentially reduce S. exigua oviposition on shallots.

Farmers' Perception and Participation in Bat Conservation in Agricultural Areas of Banyuwangi, East Java, Indonesia Adelia, Venika Shafa; Priyambodo, Swastiko; Hindayana, Dadan; Wiantoro, Sigit
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.103894

Pests in the agricultural sector cause huge losses to farmers' production and income. Sustainable pest management, such as the utilization of natural predators, is important to maintain agricultural productivity. In Banyuwangi, East Java, Indonesia fruit-eating bats pose a threat to horticultural yields, although their ecological roles as pollinators and seed dispersers are recognized. Conflicts between bat conservation efforts and farmers' needs arise because most farmers view bats as pests. This study examines farmers' perceptions of bats and their participation in bat conservation in Banyuwangi, as well as the factors that influence their attitudes. Based on interviews and data analysis in three sub-districts, this study found that farmers' knowledge on the benefits of bats is not always directly proportional to their positive attitude towards them. To resolve this conflict, a management strategy that includes education, incentives and collaboration with farmers is suggested. Through this approach, a balance between bat conservation and agriculture sustainability is expected to be realized, providing long-term benefits for the ecosystem and agricultural productivity in the region.

Environmental and Economic Impacts of Pesticide Use in Intensive Agricultural System: A Case Study in Parongpong District, West Bandung Regency Pipit, Ayu; Martono, Dwi Nowo; Utomo, Suyud Warno
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.106879

The intensive use of pesticides in agriculture has raised concerns regarding environmental quality and economic sustainability, particularly in Parongpong District, West Bandung Regency. This study aimed to analyze the impact of pesticide use on soil and water quality as well as its economic implicates on farmers. A mixed-method approach was applied through soil and surface water sampling, laboratory analysis, and structured questionnaires with 100 farmers. Soil quality tests revealed low pH, reduced organic carbon (1.61%), and high cadmium (5.2 mg/kg), indicating soil degradation. Water samples from the Cibeureum River showed that BOD (93.5 mg/L), COD (302 mg/L), and total phosphorus (0.475 mg/L) exceeded national standards, suggesting nutrient overload and pollution linked to pesticide runoff. Economically, although 98% of farmers perceived pesticides as beneficial, the Benefit-Cost Ratio (BCR) analysis resulted in a value of 0.57, implying financial inefficiency. This indicated that the cost of pesticides and mitigation outweighs the actual benefits received from increased crop yields. The gap between farmers’ perception and objective economic and environmental data highlights the need for sustainable solutions. Organic farming practices introduced by local farmer groups, such as Semai Organik and Farm Organic Parongpong, offer promising alternatives for improving productivity while preserving environmental integrity. Promoting environmentally friendly farming methods is essential to ensure long-term ecological balance and economic resilience in the agricultural sector.

Antagonistic Activity of Paenibacillus polymyxa against Xanthomonas oryzae: An In Vitro Dual Culture Study Purwanti, Eny Wahyuning; Ramadhani, Reyhan Destrawan; Farid, Abdul
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.108578

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae is a major constraint to rice production in Tulungagung, especially in the District of Gondang. This study aimed to evaluate the antagonistic effect of Paenibacillus polymyxa on Xanthomonas oryzae using an in vitro dual culture assay. The experiment was conducted as a randomized complete design with four treatments: P0 (X. oryzae, P1 (X. oryzae + chemical bactericide), P2 (X. oryzae + sterile water), and P3 (X. oryzae + P. polymyxa), each replicated five times. Observations were made for seven days by measuring the diameter of X. oryzae colonies. Data were analyzed using one-way ANOVA and a Duncan Multiple Range Test post-hoc test was done if a significant difference were detected. The analysis showed significant difference among treatments. The application of P. polymyxa (P3) resulted in significantly smaller colony diameters compared to P0 and P2, and was statistically similar to bactericide treatment (P1). These results showed that P. polymyxa is effective in inhibiting the growth of X. oryzae and has strong potential as a biological control agent for sustainable rice cultivation.

Developing a Cheaper, Longer-lasting Way to Track Cocoa's Most Costly Pest, The Cocoa Pod Borer, Conopomorpha cramerella (Lepidoptera: Gracillariidae) Niogret, Jerome; Tabanca, Nurhayat; Zhang, Aijun
Jurnal Perlindungan Tanaman Indonesia Vol 29, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.109575

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Y. Andi Trisyono

Contact Email
anditrisyono@ugm.ac.id

Phone
+62274-523926

Journal Mail Official
jpti.faperta@ugm.ac.id

Editorial Address
Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Y. Andi Trisyono

Contact Email anditrisyono@ugm.ac.id

Phone +62274-523926

Journal Mail Official jpti.faperta@ugm.ac.id

Editorial Address Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location Kab. sleman, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Y. Andi Trisyono

Contact Email
anditrisyono@ugm.ac.id

Phone
+62274-523926

Journal Mail Official
jpti.faperta@ugm.ac.id

Editorial Address
Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA