The invention of the present application provides a natural material derived from Swinglea glutinosa leaves that in combination with avermectins, increases the effect of avermectins over mites. The material derived from Swinglea glutinosa leaves, in a preparation with avermectins, results in an all natural material with the potential to replace combinations of avermectins with synthetic pyrethroids, eliminating the need to use synthetic pesticides for acari control.
