Western corn rootworm (WCR. Diabrotica virgifera virgifera LeConte) is a major corn pest in the United States. causing annual losses of over $1 billion. One approach to protect against crop loss by this insect is the use of transgenic corn hybrids expressing one or more crystal (Cry) proteins derived from Bacillus thuringiensis. https://poolsproductscanadas.shop/product-category/mastertemp-parts/