**** - Problems with some toxic substances used biopesticide. May affect the insects and creatures that are beneficial to crops such as Bt toxin is usually put in the GMO (GMOs) the results of Losey, a Cornell University has studied the effects of insecticidal bacteria Bacillus thuringiensis (Bt.) in maize genetically engineered for the Monarch butterfly in the experiment was conducted in a laboratory under conditions that yielded just Stress by initially only. This need has been demonstrated in the field to get the results significantly. Prior to the conclusion and will be extended further.