Published online by Cambridge University Press: 12 June 2017
In the years that 2,4–D has been used as a selective herbicide in agricultural areas, an increasing number of reports of its injury to crops has been published. As a result of extensive investigations, lists of susceptible and resistant crops have appeared. Some of the extremely susceptible crops include cotton, sugar beets, alfalfa, tomatoes, peas, beans, cabbage, broccoli, lettuce, grapes, and many others. In response to numerous reports of 2,4–D injury to various small grains, we now consider these plants as being relatively susceptible to 2,4–D at certain stages of development also. The morphological injuries reported may be just as severe as in the case of some of the above-mentioned plants.