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Study on occurrence regularity and control of Scutellariae Powdery Mildew.

作  者:
Zhang Xin-yan;Liu HaiGuang;Li Shi;Su ShuXin;WU Xiao-gang;Qiu GuangYan;Liu CuiZhen;Han GuoJia
关键词:
disease;scutellariae;powdery mildew;occurrence regularity;fungicides;and contro
摘  要:
[Objective] The aim was to explore the occurrence regularity of Scutellariae Powdery Mildew in Chengde City of Hebei Province,and the disease was treated with different fertilizers and different fungicides. [Method] The field observation method was adopted to record the occurrence regularity of Scutellariae Powdery Mildew,combined with application of fertilizers and fungicides. [Result] Scutellariae Powdery Mildew mainly damage leaves and pods,the pathogen overwinter by mycelium and cleistothecium in diseased residual plants of Scutellaria baicalensis Georgi,morbidity peak of the disease is during early August to mid-september;it in favour of the disease in conditions of more sunny days and less rainfall. [Conclusion] Applying urea could be beneficial to the disease,applying monopotassium phosphate and compound fertilizers could reduce incidence of the disease;40% Flusilazole EC(1∶10 000)had best effect to control the disease,which could reach 87.48%. The study will provide theoretical basis for effective prevention and control of Scutellariae Powdery Mildew.

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