Pine wilt disease(PWD),known as the"pine cancer",is a fatal disease for pines caused by the pine wood nematode(Bursaphelenchus xylophilus,PWN).It is the most serious forest pest in China.Physical treatment of trees infected with PWN has little impact on environment and ecosystem,and can reduce the waste of pine wood resources.This paper mainly expounds the 2 physical treatment methods against PWD,including barrier control and heat treatment.For barrier control,3 ways could be used including aqueous film forming,netting treatment,and stump sealing,which can effectively prevent Monochamus alternatus from escaping and thus stop the spread of the PWD.There are also 3 ways for the heat treatment,i.e.,conventional heat treatment,vacuum/steaming treatment,and electromagnetic wave treatment,which have the advantages of fastness,efficiency and no residues and enable the treated wood to be safe in use.It is pointed out that the future development will be focused on how to further encourage the use of new machinery and technology,scale up the application of physical treatment and strengthen the cross-cuttings between various disciplines.This would provide new ideas for future research on PWN infected wood treatment.
pine wilt disease(PWD)PWD-infected woodbarrier controlheat treatment
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