Feeding, oviposition and survival of Liriomyza trifolii (Diptera: Agromyzidae) on Bt and non-Bt cottons
文献类型: 外文期刊
第一作者: Liu, T. -X.
作者: Liu, T. -X.;Lei, Z.;Greenberg, S. M.
作者机构:
关键词: leafminer;feeding;oviposition;survival;emergence;Bt cotton
期刊名称:BULLETIN OF ENTOMOLOGICAL RESEARCH ( 影响因子:1.75; 五年影响因子:2.007 )
ISSN: 0007-4853
年卷期: 2009 年 99 卷 3 期
页码:
收录情况: SCI
摘要: The effects of Bt transgenic cottons (Bt-I expressing cry1Ac and Bt-II expressing cry1Ab and cry2Ab or cry1Ab and cry1Fa) and non-Bt cottons on feeding, oviposition and longevity of adults, and development and survival of Liriomyza trifolii larvae were studied under laboratory conditions; and infestation on four Bt and two non-Bt cotton traits were investigated under field conditions. Laboratory choice and no-choice tests showed that L. trifolii adults were capable of distinguishing between Bt cottons and non-Bt cottons. In a choice test on younger plants (4-5 leaves), the adults were found more often and made more feeding punctures (FP) on non-Bt cottons than on Bt cottons. On older plants (8-9 leaves), adults made the most FP on non-Bt cotton followed by those on Bt-II cottons and the least on Bt-I cotton. The females oviposited more eggs (6.7 eggs per leaf) on non-Bt cotton than on Bt-I (1.7 eggs per leaf) and Bt-II (0.8 eggs per leaf) cottons on younger plants and oviposited similar numbers of eggs (0.7-1.3 eggs per leaf) on non-Bt and Bt cottons on older plants. hi a no-choice test, the females also fed more FP on non-Bt cottons than on Bt cottons on both younger and older plants. The females oviposited more eggs (15.6 eggs per leaf) on non-Bt cotton than on Bt-I (8.2 eggs per leaf) and Bt-II (6.5 eggs per leaf) cottons on younger plants and similar numbers of eggs (2.5-3.3 eggs per leaf) on non-Bt and Bt cottons on older plants. Larval and puparial survivals were not different among Bt and non-Bt cottons. The occurrence and damage of leafminers on cottons in the field showed that L. trifolii infested more plants and leaves and had more mines on non-Bt cotton than on Bt cottons.
分类号:
- 相关文献
作者其他论文 更多>>
-
A natural recombinant PRRSV between HP-PRRSV JXA1-like and NADC30-like strains
作者:Wang, H. -M.;Liu, Y. -G.;Tang, Y. -D.;Liu, T. -X.;Zheng, L. -L.;Wang, T. -Y.;Liu, S. -G.;Wang, G.;Cai, X. -H.
关键词:genetic diversity; NADC30-like PRRSV; pathogenicity; porcine reproductive and respiratory syndrome virus (PRRSV); recombination
-
Iron Redox Cycling Coupled to Transformation and Immobilization of Heavy Metals: Implications for Paddy Rice Safety in the Red Soil of South China
作者:Yu, H. -Y.;Li, F. -B.;Liu, C. -S.;Liu, T. -X.;Yu, W. -M.;Huang, W.
关键词: