German lesson not the best guide: Can oilseed rape autumn disease control and growth regulation both be achieved without compromising performance?

摘要

Disease control or growth regulation? There is no doubt the role of autumn oilseed rape fungicides has been blurred in the past couple of seasons as the use of certain triazole fungicides for autumn growth management, based particularly on German experiences, has been trumpeted. Unfortunately, trying to combine phoma disease control and growth regulation often involves compromise. Treating phoma when the threshold is reached isn't necessarily the best timing for growth regulation, and vice-versa.