Biological Characteristics of The Stem Borer Bactra venosana Zeller (Lepidoptera: Tortricidae) on Sedge

Received: 22-07-2015

Accepted: 01-12-2015

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Issue: Vol. 14 No. 3 (2016)

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NÔNG HỌC

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Hung, N., Chi, N., Dat, D., Hai, N., Nam, T., Vuong, P., & Giang, H. (2024). Biological Characteristics of The Stem Borer Bactra venosana Zeller (Lepidoptera: Tortricidae) on Sedge. Vietnam Journal of Agricultural Sciences, 14(3), 338–345. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/1420

Biological Characteristics of The Stem Borer Bactra venosana Zeller (Lepidoptera: Tortricidae) on Sedge

Nguyen Pham Hung (*) 1 , Nguyen Van Chi 2 , Do Xuan Dat 2 , Nguyen Nam Hai 2 , The Thanh Nam 2 , Pham Thi Vuong 2 , Ho Thi Thu Giang 3

  • 1 Nghiên cứu sinhKhoa Nông học, Học viện Nông nghiệp Việt Nam
  • 2 Viện Bảo vệ thực vật
  • 3 Khoa Nông học, Học viện Nông nghiệp Việt Nam

    • Keywords

    Bactra venosana, life cycle, longevity, number of eggs, sedge stem borer

    Abstract


    The sedge stem borer Bactra venosanaZeller isconsidered as one of themajor pestsonsedge. The studywas carried out to examine the biological characteristics of B. venosanaunder semi-natural conditions (green house)int Nga Son, Thanh Hoa. Themean developmental time was from 55.82 ± 0.90 days, 44.57 ± 0.87 days and 33.07 ± 0.82 days at 21.83 ± 0.74oC, 25.89 ± 0.89oC and 29.83 ± 0.71oC, respectively.The number of eggs laid by a female was 69.13 eggs at 25.4oC and 91.93%RH. The egg hatching percentage was high 84,1-90,1%. Male adult longevity was significantly shorter than thefemales.

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