The use of dsRNA is a familiar technology to many insect biologist and feeding it to your target insect at the appropriate stage, if effective at silencing genes of interest, can be a very convenient means of regulating gene expression. A few years ago transgenic plants expressing dsRNA designed to silence an essential midgut-expressed gene, DvSnf7, in the Western Corn Rootworm, Diabrotica virgifera, was described. Since then there have been numerous examples where in planta expression of dsRNA has been effective as knocking down gene expression.