Effect of the Extract of the Mixture of Tagetes Patula on the Development of the Nematode Ditylenchus Dipsaci on Broad Bean (Vicia Faba)

Abstract

Stem and bulb nematode: D. dipsaci constitutes a fairly serious threat to beans in Algeria, particularly through its transmission by seed. the effect of aqueous extracts of some plants tested in vitro, the data obtained showed that all the extracts tested caused mortality of D. dipsaci and the mortality rate depends on the period of exposure, the concentration and the nature of the extract. In vivo, the application of Tagetes patula extracts to broad beans is more effective before but not after planting.