Most Iowa crop producers now rely on two crops, corn and soybeans, for their livelihood. This has led to many problems, including increased pest problems, such as with bean leaf beetles and soybean aphids, and more vulnerability to adverse weather and poor prices. It has also become increasingly difficult to compete in the world market when these commodities can be produced at a lower cost in other countries, such as Brazil. Crop producers are continually looking for a third crop to include in the rotation, but either the economics are not favorable or there is not a local market for the crop. Crop producers are also frustrated that very little of the profit in agriculture trickles down to the farmer.