The researchers at Australias national research organisation, CSIRO took the gene for a protein capable of killing pea weevil pests from the common bean and transferred it into the pea.
From the guardian.co.uk
The pea leaf weevil is native to Europe, but has spread to other places such as Alberta, Canada.
From the en.wikipedia.org
The weevil larvae feed on the root nodules of pea plants, which are essential to the plants'supply of nitrogen, and thus diminish leaf and stem growth.