Abstract:

In order to conserve pines, especially Pinus massoniana, which is the main tree species for greening and beautifying the environment in Xiamen of Fujian Province, clear cutting of the wilt pine caused by the pine wood nematode was not adopted ad done elsewhere, but a series of sustainable management strategies were conducted, such as Bursaphelenchus xylophilus application during 2002 to 2007, epidemic surveillance, dying branches and trees clearance, chemical fumigation in field, hanging traps for Monochamus alternatus, setting vertical induced wood, releasing Scleroderma guani and Beauveria bassiana application for biological control. The results showed that the damage pine forest area was decreased from 1 973 hm² in 2001 to 42.8 hm^-2 in 2007. The rate of withered trees caused by B. xylophilus reduced very significantly. In addition, population of M. alternatus in forests diminished obviously, and the number of M. alternatus entrapped by each trap averagely reduced from 72.7 to 1.8 annually. Extensive area pine forests in Xiamen maintained evergreen currently. It suggested that B. xylophilus could be controlled and a relatively sound pattern of controlling pine wilt disease was preliminarily developed.

Key words: Bursaphelenchus xylophilus, control techniques, sustainable management, effect evaluation, Xiamen of Fujian Province