Study on Interval Periods and effects of Fungicides to Control CLS of Beet

doi:10.11924/j.issn.1000-6850.casb15050096

Abstract

Abstract: This experiment took triazole fungicide as the replace agent of benz-imidazole fungicide to control Cercospora leaf spot for sugar beet. In order to study the effects of fentin acetate, flusilazole and difenoconazole on the interval periods and control of CLS and the yield of sugar beet, field plot experiment was conducted from 2013 to 2014. The results showed that when the interval period was 3 weeks, the control efficiency of per hectare applied with 25% fentin acetate wettable powder 1809 g, 25% flusilazole EW 300 mL and 10% difenoconazole water dispersible granule 600 g was 77.41% , 77.03% and 71.36% , respectively. These 3 fungicides did not significantly affect beet root yield and sugar yield, but significantly increased sugar rate, when the interval period was 3 weeks compared with CK, 3 fungicides could increase sugar rate by 1.16%, 1.56% and 1.25%, respectively.

CLC Number:

References

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