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http://dx.doi.org/10.5423/RPD.2010.16.3.299

Improbability of Root Infection by the Pine Wood Nematode in Sawdust Discharged from Chain Saw Lumbering of Infected Trees  

Lee, Seung-Kyu (Korea Forest Research Institute)
Park, Joo-Young (Jungbu Regional Office, National Quartine Service of Korea)
Lee, Chong-Kyu (Jinju National University)
Whang, Jin-Hyun (Gyeongsangnamdo Forest Environmental Research Institute)
Moon, Il-Sung (Korea Forest Research Institute)
Cheon, Hyang-Mi (Southeren Forest Experimental Station, Korea Forest Research Institute)
Heo, He-Soon (Southeren Forest Experimental Station, Korea Forest Research Institute)
Publication Information
Research in Plant Disease / v.16, no.3, 2010 , pp. 299-305 More about this Journal
Abstract
Objective of this study is to examine whether pine wood nematode (PWN: Bursaphelenchus xylophilus) in the sawdust discharged from infected trees cause pine wood disease or not. For this, survival time of PWN in soil was examined in which soil moisture was controlled as 15%, 22.5%, and 30% in volume ratio, respectively. The pathogenicity tests were conducted under greenhouse and field conditions. Survival time of PWN in soil was about three days in the saturated (about soil moisture of 23% in volume ratio) and dark condition between 25 and $28^{\circ}C$ of room temperature. None of potted seedlings with non-wounded roots was infected by PWN in sawdust. In field, pine wood disease was not occur in any pine trees. These results indicated that PWN discharged on soil when the infected trees were cut by chain saw can not cause pine wood disease.
Keywords
Bursaphelenchus xylophilus; Root infection; Sawdust;
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