核桃黑斑病病原菌田间防控研究

Study on the Prevention and Control of Pathogenic Bacteria Causing Black Spot of Walnut in Field

通过开展田间不同防控措施下核桃黑斑病病害侵染情况试验,结果表明:黑斑病的病原菌不是单一的细菌性黄单胞杆菌,而是由细菌和真菌组成的多病源的混合病菌。提出了杀菌剂单一使用对黑斑病的防控作用有限,防病时可附带杀虫措施,有利于降低病害侵染程度。

By carrying out experiments on the infection of walnut black spot disease under different prevention and control measures in field,it’s concluded that the pathogenic bacteria causing black spot was not the single bacterial xanthomonas,but a mixture of bacteria and fungi.The single use of germicide showed limited prevention and control effect on black spot.And it is accompanied by insecticidal measures during disease prevention,which is helpful to reduce the degree of disease infection.