ABSTRACT

Chromolaena odorata (L.) R.M. King and H. Robinson (Asteraceae) is one of the worst invasive weeds in Africa, Asia, and the Pacific. Cecidochares connexa (Macquart) (Diptera: Tephritiidae) is a biological control agent of C. odorata. It was introduced into Côte d’Ivoire in 2003 and spread across West Africa. This paper reports the establishment, distribution, and density of C. connexa in Nigeria, the seventh country in West Africa with a confirmed report of C. connexa. It is anticipated that the gall fly, recorded in Nigeria, will have similar impacts on C. odorata as in the other six countries.

摘要

Chromolaena odorata (L.) RM King and H. Robinson (Asteraceae) 是非洲、亚洲和太平洋地区入侵性最强的杂草之一。Cecidochares connexa (Macquart) (Diptera: Tephritiidae) 是C. odorata的生物防治剂。它于 2003 年被引入科特迪瓦并传播到整个西非。本文报道了C. connexa在尼日利亚的建立、分布和密度，这是西非第七个确认有C. connexa报告的国家。预计在尼日利亚记录的胆蝇将对C. odorata产生与其他六个国家类似的影响。