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Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (05): 64-68.doi: 10.11707/j.1001-7488.20070511

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Biocontrol of Monochamus alternatus by Beauveria bassiana and Scleroderma guani

Liu Hongjian1,2,Piao Chungen1,Wang Laifa1,Shin Sangchul3,Chung Yeongjin3,Shu Qinglong2   

  1. 1.Key Laboratory of Forest Protection,State Forestry Administration Research Institute of Forest Ecology,Environment and Protection,CAF Beijing 100091;2.College of Forestry and Garden,Anhui Agricultural University Hefei 230036;3.Korea Forest Research Institute Seoul 130-712
  • Received:2006-10-16 Revised:1900-01-01 Online:2007-05-25 Published:2007-05-25

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Abstract:

By the infection experiment of Beauveria bassiana to the overwintering larvae of Monochamus alternatus under different temperatures and dosages,the results showed:20～25 ℃ was the fittest temperature range for B.bassiana to M.alternatus.Under 20 ℃,parasitic rates of B.bassiana to M.alternatus by three kinds of concentration of B.bassiana spore suspension were 58%、95% and 100% respectively.By comparing mortality of M.alternatus at 4 th instars after inoculation of B.bassiana,Scleroderma guani and S.guani with B.bassiana,on the 7 th day,the highest mortality of M.alternatus only inoculating B.bassiana was 26.3%;the highest mortality of M.alternatus only inoculating S.guani was 55.0%;and the highest montality of M.alternatus inoculating and S.guani with B.bassiana was 94.4%.The field experiment showed that the mortality of the M.alternatus larvae treated by S.guani with B.bassiana was 61.1%,by S.guani was 40.8%,and by B.bassiana was 0.0%.So S.guani with B.bassiana might have better effect to the larvae of M.alternatus.

Key words: Beauveria bassiana, Scleroderma guani, Monochamus alternatus, pathogenicity