Extension Agronomists Contents Biology Economic Importance Control Summary Wild radish is the most common and problematic weed infesting wheat and other small grains in Georgia. It is found throughout the state and can be a serious pest in other crops including peanut, corn and winter vegetables. This publication provides information concerning the biology and growth of wild radish, the problems associated with its presence in wheat and other small grains and methods of control and management. Most of these species are cool-season plants and have been introduced from eastern Europe and Asia.
Wild radish is classified as a winter annual or a biennial plant, depending on region.
In Georgia, wild radish and other similar species are winter annuals. Generally, these species germinate during the fall months when soil temperatures drop below 65 degrees F. Studies indicate a chilling requirement is necessary to break dormancy. Therefore, the pod must decay before the seed can be released to germinate. As the leaves mature, the serrations will be more jagged and deeper indented. In addition, the leaves are covered with stiff hairs, giving a bristly feel to the touch.