Biocontrol Science and Technology (2014) 24, 950-964

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Zhong-Shi Zhou, Hong-Song Chen, Xing-Wen Zheng, Jian-Ying Guo, Wei Guo, Min Li, Min Luo and Fang-Hao Wan (2014)
Control of the invasive weed Ambrosia artemisiifolia with Ophraella communa and Epiblema strenuana
Biocontrol Science and Technology 24 (8), 950-964
Abstract: Ambrosia artemisiifolia L. is native to North America, and was unintentionally introduced into China in the 1930s, where it has become invasive. The two insect species Epiblema strenuana and Ophraella communa have been considered as biological control agents of A. artemisiifolia in China. The purpose of this study was to examine the control effect of O. communa + E. strenuana on A. artemisiifolia in the field. The mortality of A. artemisiifolia plants increased with time and increasing initial release densities of O. communa and/or E. strenuana in 2008 and 2009. The treatments of 0.53 O. communa + 0.53 E. strenuana per plant and 12 O. communa + 16 E. strenuana per plant at early (60-70 cm tall) and later (90-100 cm tall) growth stages could subsequently kill all plants prior to seed production in both 2008 and 2009. Thus, the two initial densities of the two insect species may be recommended when they are jointly used for biological control of A. artemisiifolia at the two growth stages. However, all or some plants could survive and bear seeds in any other treatment and in the non-treated control plots. This implies that biological control of A. artemisiifolia with the two biological control agents will be recommended in the areas invaded by A. artemisiifolia in China.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Fang Hao Wan

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
evaluation - screening - selection

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Ambrosia artemisiifolia (weed)
Epiblema strenuana (weed bioagent) Ambrosia artemisiifolia (weed)
Ophraella communa (weed bioagent) Ambrosia artemisiifolia (weed)