Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The potential for biological control in the suppression of parasitic weeds.

Abstract

The authors review the importance of several species of parasitic weeds affecting many economically important plants, present methods of chemical and cultural control, and the potential for their biological control. Little is known of their natural enemies and even of the weed species themselves in many parts of the world. No outstanding success has so far been achieved in their biological control, although in the USSR Phytomyza orobanchiae Kalt. is considered the best method of controlling broomrape (Orobanche ramosa), and this work illustrates the possibility of incorporating existing natural enemies into control programmes as well as introducing exotic species. It appears unlikely that the biological control of parasitic weeds will provide adequate control of them in the near future, and further studies of the natural enemies and development of integrated control programmes for weed and crop pests are needed before the possibilities can be fully exploited.