Effects of temporal change in host susceptibility on the epidemic pattern of pine wilt disease

2016 Fiscal Year Final Research Report

• Project/Area Number: 26660135
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: Nakamura Katsunori 国立研究開発法人森林総合研究所, 東北支所, グループ長 (40343785)
• Co-Investigator(Renkei-kenkyūsha): MAEHARA Noritoshi 国立研究開発法人森林総合研究所, 東北支所, 主任研究員 (20343808) ; AIKAWA Takuya 国立研究開発法人森林総合研究所, 東北支所, 主任研究員 (90343805)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: マツ材線虫病 / 流行過程 / 定量的把握 / 宿主感受性 / 病原体の毒性 / 媒介者密度

Outline of Final Research Achievements

In an infectious system of a disease, host susceptibility and/or power of infection by an infective agent can fluctuate with time. It is important for an accurate understanding of disease dynamics to take such fluctuations into account. We developed a methodology for quantitative measurement of host susceptibility, virulence of the pathogen and density of the vector insect in pine wilt disease as an infectious tree disease with one-year infection cycle under field conditions. We then intended to estimate the effect of such factors on the pattern of infection spread in pine tree population, but could not outwork it during the 3-year study period. Continual research with the methodology developed in this study would actualize quantitative estimation of the factors on the epidemic pattern of pine wilt disease.

Free Research Field

森林保護学　マツ材線虫病