Bladsvampe og biostimulanter

Conclusion

In three fields with sugar beets 2022 with attack of beet rust and late-developed powdery mildew, three
biostimulants and a microbiological product are studied for their potential contribution to leaf disease
control with fungicides.
The biostimulant FG003 shows little effect on powdery mildew, and the biostimulants Charge and B03 and
the microbiological agent Serenade ASO show weak or no effect against powdery mildew. The tested
products show weak or no effect against rust. In terms of yield, treatment with B03 and Serenade ASO in a
mixture with fungicides have resulted in a relative yield of 115-118, which is on similar level with treatment
with the fungicides alone. Charge, in a mixture with a smaller fungicide input, has indicated a yield level of
114 and approximately at the level of a standard fungicide input of relatively 116. As a solo treatment, FG003
results in a 6 per cent increase in yield. FG003 in mixture with a lower fungicide input has resulted in
relatively 111 and has not achieved the same yield as a higher pure standard fungicide input which has
resulted in 116.