The plantings of a single species. A major force in the increase of monoculture in modern agriculture has been the development of machinery for tilling, planting, pest control and harvesting, which is cheaper than human labor, and is considered more efficient at larger scales. Examples of monocultures include lawns and most field crops, such as wheat or corn. The drawbacks and risks of excessive use of a single species are acknowledged and well understood in agriculture and agricultural science. Cropping systems such as crop rotation and especially pastures address some of these drawbacks. Extensive monoculture of fruits other crops tends to produce pollination problems, because pollinators cannot use all the resources available during bloom, and they may starve during the rest of the season. Such pollination problems are solved by pollination management.