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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (7): 74-81.doi: 10.11707/j.1001-7488.20140711

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Capacity of Transmitting Bursaphelenchus xylophilus by the Vector Monochamus alternatus Adults

Zhan Maokui1, Yang Zhongqi1, Wang Xiaoyi1, Lai Yanxue2, Zhang Yifeng2   

  1. 1. Key Laboratory of Forest Protection of State Forestry Administration Research Institute of Forest Ecology, Environment and Protection, CAF Beijing 100091;
    2. Forest Pests and Diseases Control and Quarantine Station of Ningbo Ningbo 315012
  • Received:2014-03-27 Revised:2014-05-24 Online:2014-07-25 Published:2014-07-04
  • Contact: 杨忠岐

Abstract:

To determine the capacity of transmiting Bursaphelenchus xylophilus by the vector Monochamus alternatus adults, the supplementary nutrition on cortical part of twigs was investigated in glass jars indoor and in wire mesh in forest with pine sawyer beetle adults newly eclipsed throughout its lifespan. The results indicated that the main parts that pine sawyer beetles feeded on were the cortical part of 1-year-old young twigs (accounted 81.96%), 2-year-old and 3-year-old branchs. The adults' feeding area in wire mesh was compared with the feeding area in forest. The data showed that one M. alternatus adult could kill 4.06(1.0-12.9) of P. massoniana plants at 18(14-23)-year-old, demonstrating that M. alternatus adults had a huge transmitting capacity of B. xylophilus. In the epidemic area of pine wilt disease, the death number of host trees caused by the disease and the disease occurrence area could be predicted through the survey on the population of pine sawyer. Simultaneously, the data also showed that control of pine sawyer beetles was a key link of combating with pine wilt disease.

Key words: Monochamus alternatus, pine wilt disease, feeding area, forest pest

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