The western corn rootworm. Diabrotica virgifera virgifera LeConte. is among the most serious insect pests of maize in North America. One strategy used to manage this pest is transgenic maize that produces one or more crystalline (Cry) toxins derived from the bacterium Bacillus thuringiensis (Bt). https://cosmeticssquadets.shop/product-category/respiratory-care/