黑星病是梨树上的主要病害之一,严重影响梨果的产量和品质。由于近十多年来大量使用多菌灵防治,病菌对该药已经产生明显抗性。为筛选出新的防治药剂,河北农业大学园艺学院赵慧芹等人进行了田间药效试验。 Scab is one of the major diseases on pear trees, seriously affecting the yield and quality of pear fruit. As a result of extensive use of carbendazim in the past decade or so, the bacteria have shown significant resistance to the drug. In order to screen out a new prevention and treatment of pesticides, Hebei Agricultural University College of Horticulture Zhaohui Qin et al conducted a field efficacy test.