Analyzing European field trials reveals that companies and regulators alike have been responsive to environmental concerns

Industry data from 1986 to 1993 show that maize is challenging potato and oilseed rape as “top of the crops” and that Europe lags behind North America

Growth of triazine-resistant and -susceptible biotypes of Solanum nigrum was studied over a range of temperatures to test whether resistant biotypes show reduced performance under high temperatures. Each biotype was represented by parental lines and reciprocal F1 crosses. Resistant biotypes were inferior in growth relative to susceptible biotypes. Temperature had no differential effect on the relative performance of resistant and susceptible biotypes. Our results with Solanum nigrum do not support the hypothesis that the infrequent occurrence of the resistant biotypes in southern regions is explained by their decreased growth at high temperatures.