Forest Pathogen Detection, Diagnosis and Control

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Health".

Deadline for manuscript submissions: 30 December 2025 | Viewed by 1399

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Guest Editor
Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
Interests: diversity and evolution of oomycetes and fungal species; oomycetes and fungal diseases diagnosis; emerging plant diseases; plant disease management
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Special Issue Information

Dear Colleagues,

The health of forests is of paramount importance in sustainable forestry management, and an accurate diagnosis and efficient management of forest diseases are crucial for preserving the vitality of forest ecosystems. Forest pathogens, which include fungi, chromista, bacteria, and viruses, present a serious danger to forest trees, resulting in diseases that can lead to extensive mortality, diminish timber quality, and disturb ecological equilibrium.

This Special Issue of Forests concentrates on progress in the early detection, proper identification, and management of forest pathogens. Researchers studying innovative approaches for the identification and monitoring of pathogens at different levels, from molecular methods to remote sensing technologies, are hereby invited. Submissions that focus on the incorporation of diagnostic instruments within forest management methods are particularly welcomed, along with research examining the effectiveness of existing and innovative control strategies, such as biological control, chemical methods, and silvicultural techniques.

The objective of this Special Issue is to compile the most recent scientific discoveries that can guide and improve forest management strategies designed to reduce the effects of forest pathogens. Contributions that address a wide array of subjects concerning the diagnosis and control of forest pathogens are welcomed, with the intention of promoting knowledge sharing and cooperation among researchers, forest managers, and policymakers.

Dr. Roberto Faedda
Guest Editor

Manuscript Submission Information

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Keywords

  • forest pathogens
  • diagnostics tools
  • early detection
  • identification
  • forest health
  • forest management

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Published Papers (2 papers)

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Research

12 pages, 1275 KB  
Article
Novel High-Suitability Regions for Oil Palm with Basal Stem Rot Estimations in Indonesia and Malaysia
by Robert Russell Monteith Paterson
Forests 2025, 16(11), 1669; https://doi.org/10.3390/f16111669 - 31 Oct 2025
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Abstract
Palm oil is a significant product, predominantly from Indonesia and Malaysia, and is included in many products. However, oil palm (OP) plantations have been associated with deforestation and destruction of peat soil, tending to increase CO2 in the atmosphere and contribute to [...] Read more.
Palm oil is a significant product, predominantly from Indonesia and Malaysia, and is included in many products. However, oil palm (OP) plantations have been associated with deforestation and destruction of peat soil, tending to increase CO2 in the atmosphere and contribute to climate change. The growth of OP may be affected detrimentally by climate change. Also, OP is susceptible to basal stem rot (BSR) caused by the fungus Ganoderma boninense. Previous CLIMEX-modelled scenarios have indicated decreases in suitable climate for growing OP in the future, and narrative models suggest increases in BSR. However, the climate maps show regions in Malaysia and Indonesia that were previously unsuitable, which have become highly suitable climate (HSC) areas and were previously unreported. These areas include the higher altitudes of (a) the west coast of Sumatra, (b) areas between Sarawak, Sabah, and Kalimantan, (c) the central region of Sulawesi, (d) northern West Papua, (e) and the Titiwangsa Mountains of Peninsular Malaysia. These trends are remarkable per se. The incidence of BSR will likely be low because the palms would experience HSC, making them more resistant to infection. For example, HSC is projected to increase from 0% at present to 95% by 2100, while BSR is projected to increase from 0% at present to 30% over the same time period in Sumatra. In Borneo, HSC is projected to increase from 0% at present to 95% by 2100, while BSR is projected to increase from 0% to 7% over the same time period. Higher CO2 fertilisation may occur which would increase OP vigour again leading to greater resistance to BSR. However, many of the regions may be biodiverse and it would be unreasonable to replace them with plantations and whether these areas would be suitable for growing OP requires careful consideration. This report of increasing areas of HSC for growing OP is unique. Full article
(This article belongs to the Special Issue Forest Pathogen Detection, Diagnosis and Control)
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18 pages, 3417 KB  
Article
Persistence of Phytoplasma and Control Efficacy of Oxytetracycline Tree Injection for Elaeocarpus sylvestris (Lour.) Poir. var. ellipticus (Thunb.) H.Hara Decline Disease
by Geon-Woo Lee, Kyung-Don Kang, Yeong-Don Lee, Sun Keun Lee and Sang-Sub Han
Forests 2025, 16(8), 1260; https://doi.org/10.3390/f16081260 - 1 Aug 2025
Viewed by 616
Abstract
Elaeocarpus sylvestris (Lour.) Poir. var. ellipticus (Thunb.) H.Hara, an evergreen tree species native to Jeju Island, South Korea, has experienced a progressive decline associated with phytoplasma infection. This study aimed to evaluate the efficacy of oxytetracycline-based tree injection for suppressing phytoplasma and improving [...] Read more.
Elaeocarpus sylvestris (Lour.) Poir. var. ellipticus (Thunb.) H.Hara, an evergreen tree species native to Jeju Island, South Korea, has experienced a progressive decline associated with phytoplasma infection. This study aimed to evaluate the efficacy of oxytetracycline-based tree injection for suppressing phytoplasma and improving tree vitality. Two formulations—oxytetracycline hydrochloride (4.3%) and oxytetracycline calcium alkyltrimethyl ammonium (17%)—were administered to 40 infected individuals across two sites using a gravity-fed injection system. Treatment efficacy was evaluated based on chlorophyll content as an indicator of physiological recovery, while phytoplasma presence was assessed by PCR at 150 days after injection. The oxytetracycline hydrochloride group showed the highest suppression, with a 70% phytoplasma non-detection rate as determined by PCR analysis. Treated trees exhibited significantly higher chlorophyll content compared to untreated infected controls. These findings suggest that minimally invasive tree injection using oxytetracycline can provide temporary suppression of phytoplasma and support physiological recovery in E. sylvestris. Full article
(This article belongs to the Special Issue Forest Pathogen Detection, Diagnosis and Control)
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