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Chinese Journal Of Biological Control ›› 2020, Vol. 36 ›› Issue (4): 534-538.DOI: 10.16409/j.cnki.2095-039x.2020.03.007

• RESEARCH REPORTS • Previous Articles     Next Articles

Biological Characteristics of Brachymeria nosatoi, a Parasitoid of Opisina arenosella Walker

WU Qiqi1,3, Lü Baoqian1, CAO Fengqin2, WU Xiaoshuang1,2, LU Hui1, TANG Jihong1, LU Qingzhi1,3, ZHANG Zhiyang1,3   

  1. 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China;
    2. Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China;
    3. Experment Farm, Chinese Academy of Tropical Agricultural Sciences, Zhanzhou 571737, China
  • Received:2019-11-18 Online:2020-08-08 Published:2020-08-07

Abstract: Opisina arenosella Walker is an important pest of palm plant which invaded Hainan in 2013, and Brachymeria nosatoi is a local natural enemy of O. arenosella. To determine the effects of nutrition and temperature on the population of B. nosatoi, the biological characteristics (parasitism rate, emergence rate and longevity) of the parasitoid under different nutrition and temperature conditions were studied. The results showed the addition of 10% honey, 10% glucose and 10% sucrose significantly prolonged the life span and increased fecundity of B. nosatoi. The suitable temperature zone for the growth and reproduction of the parasitoid was 28℃-32℃, and the development threshold temperature of the B. nosatoi is 8.13℃. The effective accumulated temperature is 378.71 day degree, based on which the parasitoid can occur 13 generations in Hainan for one year. The results of this study could provide a theoretical basis for the mass-rearing of the parasitoid and controlling of the pest.

Key words: Opisina arenosella, Brachymeria nosatoi, nutrition, temperature, biological characteristics

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