- Author: CAO Sufang, WANG Wei, LI Guoquan, DU Mingjin, BI Shuhai, ZHAO Mingxin, CAO Gang, LI Hongxu
- Keywords: Pear Valsa canker; Chemical screening; Comprehensive control effect;
- DOI: 10.13925/j.cnki.gsxb.2018.S.24
- Received date:
- Accepted date:
- Online date:
PDF （） Abstract（）
Abstract：【Objective】In order to provide the theoretical basis for the comprehensive and scientific control of pear Valsa canker, the optimal effect was screened out.【Methods】The cure rate, healing width and recurrence rate of 10 kinds of fungicides on pear Valsa canker were compared by field experiment with 19 years old‘Early Crisp'pear.The control effect was screened, and the field comprehensive control effect experiment was carried out.【Results】After treated with Fluranc, Copper of Humic Acid and 40% Flusiazole Emulsifiable oil, the cure rate was significantly higher than other chemicals.A field comprehensive control experiment was carried out with Fluranc, Copper of Humic Acid and Methyl Thionaphthylacetic Acid, which showed the better effect.【Conclusion】It's suggested that Fluranc, Copper of Humic Acid and Methyl Thionaphthylacetic Acid could be used for controlling pear Valsa canker in production.