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Scientia Silvae Sinicae ›› 2012, Vol. 48 ›› Issue (4): 61-66.doi: 10.11707/j.1001-7488.20120410

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Synthesis and Field Evaluation of Sex Attractants of Holcocerus vicarius (Lepidoptera: Cossidae)

Yang Meihong1, Zhang Jintong1, Zong Shixiang2, Luo Youqing2, Cao Chuanjian3, Fan Lihua1, Liu Hongxia4, Xin Haiping1   

  1. 1. Institute of Chemical Ecology, Shanxi Agricultural University Taigu 030801;2. Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University Beijing 100083;3. Ningxia General Station of Forest Pest Control and Quarantine Yinchuan 750004;4. Institute of Information Science and Engineering, Shanxi Agricultural University Taigu 030801
  • Received:2011-04-06 Revised:2011-05-09 Online:2012-04-25 Published:2012-04-25

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Abstract:

The sex pheromone gland extracts from virgin females of the carpenterworm moth, Holcocerus vicarius were separated by gas chromatography (GC). The corresponding synthetic compounds were studied by electroantennogram (EAG) and trapping test in field to screen a kind of sex attractant with strong attractive activity. The results showed that sex pheromone gland extracts contain (E)-3-tetradecen-1-ol (E3-14: OH), (Z) -3-tetradecen-1-ol (Z3-14: OH), (E) -3-tetradecenyl acetate (E3-14: Ac), (Z) -7-tetradecenyl acetate (Z7-14: Ac) and (Z, E) -3,5-tetradecenyl acetate (Z3E5-14: Ac). The Z7-14: Ac elicited the largest EAG response to a male (4.95 mV), followed by E3-14: Ac, Z3E5-14: Ac, E3E5-14: Ac, Z3-14: Ac, sex pheromone gland extracts and E7-14: Ac. The Z7-14: Ac was significantly (P<0.01) different from other synthetic compounds. The EAG values of these synthetic acetate compounds were significantly (P<0.01) different from corresponding alcohols. In field trials, the Z7-14: Ac had attractive activity. The E3-14: Ac and Z3E5-14: Ac could highly enhance the attractive activity when they were added to Z7-14: Ac. Traps baited with a combination of these three components Z7-14: Ac, E3-14: Ac and Z3E5-14: Ac in a 10: 4: 4 ratio at 900 μg per trap had a strong attractive activity. On average, a trap could catch 11.02 male moths per day.

Key words: Holcocerus vicarius, gas chromatography, electroantennogram, sex attractant, chemical synthesis

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