Molluscicidal activity of damsisa ambrosia maritima field trial in Assiut governorate

The effect of damsissa "ambrosia maritima" on bulinus truncates snails was studied. In a segment of Sahel Saleem canal Damsissa whole plant was appliced. An upstream segment of the same canal [without using Damsissa] was taken as a control. Each segment was divided in 10 stations snail surveys at each station were done 5 times before and 5 times after the application of damsissa. The experimental part of the canal showed a significant decline of the number of bulinus truncatus snails in the period after Damsissa application. No significant change in the same period was found in the control part of the canal. Data points to the significant effect of Damsissa in the control for bulinus truncatus snails