The last method of control for "Zymoseptoria tritici" is biological control using bacteria. "Bacillus megaterium" has been shown to cause about an 80% decrease in disease development in the trials done so far. Pseudomonads are also a promising bacterial control option. A benefit to using pseudomonads or bacillus is that they are not harmed by most fungicides, so they can be used in combination with chemical controls. However, resistant cultivars and cultural control methods for "Zymoseptoria tritici" are generally favored over chemical or biological control methods, mainly because of the high costs associated with biological control.