Wallacea Plant Protection Journal
The Wallacea Plant Protection Journal is a peer-reviewed, open-access journal dedicated to disseminating original research and insights on plant protection worldwide, with a focus on tropical plant pests and diseases. The journal provides a platform for scientists, researchers, and practitioners to share their latest findings, innovative approaches, and practical solutions related to plant protection. It covers a wide range of topics, including: Phytopathology – Research on the diversity, biology, ecology, and pathogenicity of fungi, bacteria, viruses, nematodes, and other microorganisms associated with plants. – Studies on host–pathogen interactions, mechanisms of infection, plant resistance, and novel diagnostic techniques. Entomology – Studies on insect and mite pests affecting agricultural and horticultural crops, including their taxonomy, biology, ecology, and behavior. – Development of innovative methods for pest surveillance, control, and resistance management. Integrated Pest and Disease Management (IPM/IDM) – Environmentally friendly, economically feasible, and socially acceptable approaches to crop protection. – Combination of cultural, mechanical, biological, and chemical methods to minimize reliance on synthetic pesticides. – Case studies, modeling, and evaluation of IPM strategies in different agroecosystems. Biotechnology in Crop Protection – Application of molecular biology, genetic engineering, and biotechnological innovations in understanding and managing plant pests and diseases. – Use of molecular markers, genome editing, and transgenic crops for developing resistance and enhancing plant defense mechanisms. – Exploration of endophytes, bioformulations, and novel biocontrol technologies. Epidemiology of Plant Pests and Diseases – Research on the epidemiology, spread, and outbreak dynamics of plant diseases and pests across diverse agroecological zones. – Modeling and forecasting of epidemics to support early-warning systems and preventive strategies. – Studies on the impacts of climate change, globalization, and land-use patterns on pest and disease dynamics.
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<![CDATA[Perception of the pest status of the oriental latrine fly (Chrysomya megacephala) and its control methods in Ogbomoso Agricultural Zone, Southwestern Nigeria ]]>
<![CDATA[Ilesanmi Olatunji]]>;
<![CDATA[Samuel Adelani Babarinde]]>;
<![CDATA[Adeola Odewole]]>
<![CDATA[ Wallacea Plant Protection Journal Vol. 2 No. 1 (2026) ]]>
Publisher : <![CDATA[Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University ]]>
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DOI: 10.64128/wppj.v2i1.49910
<![CDATA[Chrysomya megacephala, known as the oriental latrine fly, thrives in human settlements and poses significant public health risks due to its role in spreading pathogens. This study assessed residents' perceptions of the pest status and control methods of C. megacephala in Ogbomoso Agricultural Zone, Nigeria. Two Local Government Areas, Ogbomoso North and Surulere, were purposively selected. Using a snowball technique, 192 respondents were interviewed through a structured questionnaire, gathering data on socio-economic characteristics, awareness, perceptions, control methods, and the pest’s significance. Descriptive statistics were used for analysis. Findings showed that 61.5% of respondents were male, suggesting male dominance in livestock rearing and processing, which attracts blowflies. The mean respondent age was 51.7 years. A high level of awareness (82.8%) of C. megacephala was observed. Residents perceived the fly as a serious pest; its infestation of wounded animals, reducing their economic value, and its role in transmitting cholera via contaminated meat ranked highest (WMS = 4.3). Other impacts included causing typhoid and animal weight loss (WMS = 4.1). In terms of control, 87.0% preferred chemical methods, 77.0% preferred botanicals, and 34% preferred biological control agents, while 33% preferred physical control. Although C. megacephala was viewed as a pollinator (83.3%), a large proportion of the respondents viewed it as a health threat (77.6%) and disease vector (67.7%). Therefore, the study recommends promoting eco-friendly alternatives to chemical control, such as botanical and cultural controls, to enhance human well-being and reduce public health risks connected to C. megacephala in Ogbomoso Agricultural Zone, Nigeria.]]>
<![CDATA[Occurrence and identification of aphid (Hemiptera: Aphididae) species on several host plants in the main campus of Hasanuddin University, Makassar ]]>
<![CDATA[Rahmat Rahmat]]>;
<![CDATA[M. Takwa]]>;
<![CDATA[Athiyyah Salsabilla Lalisu]]>;
<![CDATA[A. M. Bintang Ramadhan Galigo]]>;
<![CDATA[Wardani Syahrani]]>;
<![CDATA[Ravindra Chandra Joshi]]>;
<![CDATA[Ito Fernando]]>;
<![CDATA[Ahwiyah Ekawaty Said]]>;
<![CDATA[Yani Maharani]]>;
<![CDATA[M. Bayu Mario]]>
<![CDATA[ Wallacea Plant Protection Journal Vol. 2 No. 1 (2026) ]]>
Publisher : <![CDATA[Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University ]]>
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DOI: 10.64128/wppj.v2i1.51279
<![CDATA[Aphids (Hemiptera: Aphididae) are important agricultural pests that damage host plants and transmit plant viruses. A qualitative survey was conducted from March to May 2026 across various zones of the Hasanuddin University campus, Makassar, Indonesia to document aphid occurrence and host associations. Aphid colonies were collected purposively from agricultural crops, ornamental plants, and weeds, and species identification was performed through microscopic examination of diagnostic morphological characters. Only one species, Aphis gossypii Glover, was identified from the collected aphid colonies. This species was associated with Capsicum annuum, C. frutescens, Melothria pendula, and Ficus benjamina. These observations provide baseline information on the occurrence and host associations of A. gossypii within the campus environment and highlight the potential role of weeds and ornamental plants as alternative hosts supporting aphid persistence. The present inventory provides preliminary information for future monitoring and integrated pest management studies.]]>
<![CDATA[Field evaluation of the olfactory response of Leptocorisa spp. to shrimp and invasive apple snail carcass baits ]]>
<![CDATA[Waridha Syahrur Rahmawati]]>;
<![CDATA[M. Bayu Mario]]>;
<![CDATA[Nuramaliya Nuramaliya]]>;
<![CDATA[Ravindra Chandra Joshi]]>;
<![CDATA[Ahdin Gassa]]>
<![CDATA[ Wallacea Plant Protection Journal Vol. 2 No. 1 (2026) ]]>
Publisher : <![CDATA[Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University ]]>
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DOI: 10.64128/wppj.v2i1.51302
<![CDATA[Rice bugs (Leptocorisa spp.) are destructive agricultural pests that inflict severe damage on paddy crops from the flowering stage through the milk ripening stage. Heavy infestations often result in devastating crop failure, compromised grain quality, and reduced overall agricultural yield. To mitigate these economic losses, developing environmentally sustainable management strategies that suppress pest populations without disrupting the surrounding ecosystem is crucial. This study evaluated the field efficacy of olfaction-based traps baited with decaying animal carcasses to actively lure and capture rice bugs. The field experiment was conducted on a 30 × 15 m rice field plot cultivated with the Ciliwung Super cultivar using a direct-seeding system. The custom traps were fabricated from 1,500 mL plastic bottles, each loaded with 150 g of bait consisting of either decaying shrimp or invasive apple snail (Pomacea spp.) carcasses, with ten experimental replications per treatment. Capture rates were recorded at three-day intervals, whereas damage intensity was assessed at seven-day intervals. The experimental results demonstrated that both shrimp and invasive apple snail carcass baits effectively attracted Leptocorisa spp. adults. Although the difference was not statistically significant, shrimp carcass bait showed a numerically higher attraction rate than invasive apple snail bait, suggesting its potential as an organic attractant for rice bugs monitoring and management.]]>
<![CDATA[Potential of Trichoderma species against purple blotch disease and increase shallot yields ]]>
<![CDATA[Ni Made D. Resiani]]>;
<![CDATA[Sri Wahyuni Manwan]]>;
<![CDATA[Ni Putu Sutami]]>;
<![CDATA[Asti Irawanti Azis]]>;
<![CDATA[Muhammad Iqbal Ardah]]>
<![CDATA[ Wallacea Plant Protection Journal Vol. 2 No. 1 (2026) ]]>
Publisher : <![CDATA[Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University ]]>
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DOI: 10.64128/wppj.v2i1.50533
<![CDATA[Purple blotch disease, caused by pathogenic fungi Alternaria porri, is an important foliar disease of shallot that can substantially reduce crop productivity. Biological control using Trichoderma-derived preparations offers a potential alternative to intensive reliance on synthetic fungicides. This study evaluated the effects of different concentrations of a Trichoderma sp. preparation on purple blotch development and yield performance of three shallot varieties under field conditions. The experiment was conducted in Tabanan Regency, Bali, Indonesia, from February to May 2020 using a factorial randomized block design. The treatments consisted of four concentrations of the Trichoderma preparation (0, 20, 40, and 60 mL L-1) and three shallot varieties (Bima Brebes, Bali Karet, and Local Tabanan), with four blocks. Disease development and yield-related parameters were evaluated to determine the responses to Trichoderma concentration, shallot variety, and their interaction. The combination of 40 mL L-1 Trichoderma preparation and Bali Karet was associated with a low purple blotch severity of 11.55%. However, the highest dry bulb yield (14.10 t ha-1) was recorded in the untreated Bali Karet control, whereas the 40 mL L-1 treatment in the same variety produced 13.89 t ha-1. These findings indicate that suppression of purple blotch did not necessarily correspond to a proportional increase in bulb yield and that treatment responses were dependent on shallot variety. Therefore, the effectiveness of the Trichoderma preparation should be interpreted by considering both disease suppression and varietal yield response rather than defining a single concentration as universally optimal.]]>
<![CDATA[Carrion-centric insects in plant protection and agroecosystem sustainability: A review ]]>
<![CDATA[Surya Kant Shrivastava]]>;
<![CDATA[Ravindra Chandra Joshi]]>;
<![CDATA[Anand Prakash]]>
<![CDATA[ Wallacea Plant Protection Journal Vol. 2 No. 1 (2026) ]]>
Publisher : <![CDATA[Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University ]]>
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DOI: 10.64128/wppj.v2i1.52326
<![CDATA[Carrion-centric insects function as vital components in maintaining agroecosystem stability and crop health. This review examines the multifaceted contributions of carrion-centric insects, specifically within the orders Diptera, Coleoptera, and Hymenoptera, as essential drivers of plant protection and soil ecosystem functionality. While these organisms accelerate the decomposition of dead organic mass and facilitate critical nutrient cycling pathways such as nitrogen mineralization and elemental translocation into the rhizosphere, current conservation and agricultural literature remains predominantly vertebrate-centric, leaving a significant gap in the understanding of invertebrate-led crop ecosystem services. This review bridges that gap by establishing an agroecosystem-centered framework that links carrion-centric insect activity directly to soil-rhizosphere health, crop pollination, and sustainable plant protection. The dual functional roles of these insects as non-bee crop pollinators and drivers of specialized soil microbiomes that stimulate systemic acquired resistance against phytopathogens are critically evaluated. Furthermore, the industrial biomanufacturing of insect-derived biopolymers, particularly chitosan and its derivatives, offers a nature-based platform for eco-friendly pest management, seed coatings, and controlled-release biopesticides, replacing traditional synthetic inputs within circular agricultural economies. To ensure biosecure field integration, these agro-ecological services are reconciled with pathogen vector risks through structured spatial management and a One Health biosecurity framework. Aligning insect-centric agroecosystem management with international environmental mandates, such as the Kunming-Montreal Global Biodiversity Framework and UN Sustainable Development Goal 15, is essential for building resilient agricultural landscapes. Ultimately, incorporating carrion-centric insects into modern plant protection strategies provides an indispensable foundation for sustainable crop health, biological pest suppression, and long-term agroecological resilience.]]>
