Trials, conducted by SRUC and NDSM on behalf of Bayer in 2015/16, investigated the effects of different autumn fungicide treatments on crop rooting. Ten plants per plot were selected at random and carefully dug up just before Christmas and towards the end of February. The trials were fully replicated, meaning that forty plants were dug up per treatment.
The results showed that there was no difference between any of the treatments or the untreated. Whilst previous studies may have found differences in labratory conditions, it is important to note that this was not discovered in the work Bayer commisioned. Variables such as soil flora and fauna, compaction, nutrition, variety, weather and moisture will all impact on the ability of the crop to develop roots.