Pine Wilt Disease in Korea

Shin, Sang‐Chul

doi:10.1007/978-4-431-75655-2_5

Cited by 103 publications

(109 citation statements)

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“…Since PWN is highly pathogenic, 80% of infested red pine trees die in the first year and the remaining 20% die in the second year; red pine mortality thus quickly reaches 100%. For white pine, the mortality rate is somewhat lower [6,7]. Infected trees are difficult to detect and treat since most of them die three months after infection [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Infected trees are difficult to detect and treat since most of them die three months after infection [8,9]. Fumigation, burning, and felling after cutting are the only options currently available for controlling the spread of pine wilt disease [7,10]; thus, early detection of infected trees is of paramount concern [11]. Controlling the spread of the disease involves early detection of infected trees based on frequent monitoring, exterminating PWN before its emergence to keep the disease contained, and taking preventative measures such as prohibiting the removal of wood from affected areas.…”

Section: Introductionmentioning

confidence: 99%

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Hyperspectral Analysis of Pine Wilt Disease to Determine an Optimal Detection Index

Kim

Lee

Lim

et al. 2018

Forests

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Bursaphelenchus xylophilus, the pine wood nematode (PWN) which causes pine wilt disease, is currently a serious problem in East Asia, including in Japan, Korea, and China. This paper investigates the hyperspectral analysis of pine wilt disease to determine the optimal detection indices for measuring changes in the spectral reflectance characteristics and leaf reflectance in the Pinus thunbergii (black pine) forest on Geoje Island, South Korea. In the present study, we collected the leaf reflectance spectra of pine trees infected with pine wilt disease using a hyperspectrometer. We used 10 existing vegetation indices (based on hyperspectral data) and introduced the green-red spectral area index (GRSAI). We made comparisons between non-infected and infected trees over time. A t-test was then performed to find the most appropriate index for detecting pine wilt disease-infected pine trees. Our main result is that, in most of the infected trees, the reflectance changed in the red and mid-infrared wavelengths within two months after pine wilt infection. The vegetation atmospherically resistant index (VARI), vegetation index green (VIgreen), normalized wilt index (NWI), and GRSAI indices detected pine wilt disease infection faster than the other indices used. Importantly, the GRSAI results showed less variability than the results of the other indices. This optimal index for detecting pine wilt disease is generated by combining red and green wavelength bands. These results are expected to be useful in the early detection of pine wilt disease-infected trees.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hyperspectral Analysis of Pine Wilt Disease to Determine an Optimal Detection Index

Kim

Lee

Lim

et al. 2018

Forests

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“…This species accounts for approximately half of the coniferous forest cover in South Korea and is used for various purposes [14,15]. Studying the roles of pine CWD is important, given that forest management activities and outbreak of pine wilt disease in South Korea can generate large volumes of pine CWD [16,17]. Nevertheless, not many studies have focused on the interactions between pine CWD and soils of South Korea.…”

Section: Introductionmentioning

confidence: 99%

Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests

Kim

Han

et al. 2017

Forests

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Abstract:Although coarse woody debris (CWD) is important for soil functioning, the mechanism which affects soil properties beneath CWD are unclear. Here, initial changes in microbial and soil properties were studied using homogenous CWD samples in eight Korean red pine (Pinus densiflora Sieb. et Zucc.) forests. For each forest, CWD samples (diameter: 11.1 ± 0.1 cm; length: 10.2 ± 0.0 cm) from similarly aged Korean red pine trees were laid on the mineral soil surface from May to June, 2016, and soils were sampled at points beneath CWD and at a distance of 1 m from the CWD after 1 year. Soils beneath the CWD had higher moisture but lower inorganic nitrogen (N) and a higher microbial biomass C (carbon)/N ratio than those sampled 1 m from the CWD. No differences in total C and N, labile C, pH, and C substrate utilization between the soils were significant. The difference in inorganic N between the soils decreased with increasing CWD decomposition, whereas that for microbial biomass fraction in total C and N increased correspondingly. Our results showed that soil microbial affinity for retaining N might become higher than that for retaining C under the presence of CWD, which possibly alters N availability and generates a spatial heterogeneity in forest soils.

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“…우리나라에서도 소나무재선충이 도입될 경우 발생할 피해 를 우려해 식물 검역법을 강화하고, 유입 방지를 위해 노력 하였으나 지역적으로 가까운 일본을 통해 들어온 소나무재 선충병이 1988년 10월에 부산의 금정산 일대에서 확인되었 고 (Yi et al, 1989), 이 후 한국의 남부 지방을 중심으로 확 산되던 것이 제주도와 내륙인 경기도, 강원도 지역에서도 피해가 발생하고 있다 (Shin, 2008).…”

Section: 아시아 지역에서는 일본에서 처음으로 1900년대 초부터 소나무재선충에 의한 피해가 나타나기 시작하여 1941unclassified

Biological Control of Japanese Pine Sawyer, Monochamus alternatus (Coleoptera: Cerambycidae) using Korean Entomopathogenic Nematode Isolates

Yu¹,

Jung²,

Lee³

et al. 2016

KJPS

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Japanese pine sawyer (JPS), Monochamus alternatus is a vector insect of pine wood nematode, Bersaphlenchus xylophilus in Korea and Japanese pine forest. This study was to evaluate the possibility of biological control of JPS with Korean entomopathogenic nematodes (EPNs). Korean EPNs (Heterorhabditis sp. Gyeongsan, Steinernema carpocapsae GSN1, S. glaseri Dongrae and S. longicaudum Nonsan strain) were infested bate insect, Galleria mellonella in log of dead pine tree. Result showed that, S. carpocapsae GSN1 strain has the highest pathogenicity. Heterorhabditis sp. Gyeongsan and S. carpocapsae GSN1 had infested bate insect, which located in 7.5 cm depth of pine log. EPN has pathogenicity against larva and adult of JPS. Spray application of EPNs against adult of JPS, Heterorhabditis sp. Gyeongsan strain showed higher pathogenicity than S. carpocapsae GSN1 strain. EPN infested larva of JPS was detected on bark spray treatment with S. carpocapsae GSN1 strain in dead pine log that naturally infested larva of JPS however, no EPN infested JPS was detected on soaking of pine log with suspension of S. carpocapsae GSN1 strain. Though EPN had found with low efficacy against JPS but still possible to apply to control the boring insect pest as they can control log dwelling insect.

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Pine Wilt Disease in Korea

Cited by 103 publications

References 0 publications

Hyperspectral Analysis of Pine Wilt Disease to Determine an Optimal Detection Index

Hyperspectral Analysis of Pine Wilt Disease to Determine an Optimal Detection Index

Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests

Biological Control of Japanese Pine Sawyer, Monochamus alternatus (Coleoptera: Cerambycidae) using Korean Entomopathogenic Nematode Isolates

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