| 摘要 |
［Objectives］ The paper was to evaluate the effectiveness of Xiulijing in the management of rust in Golden Delicious apple cultivation. ［Methods］ The Golden Delicious apple was utilized as the test material. During the young fruit stage, various dilutions of Xiulijing were applied, specifically at concentrations of 200, 400, 600, 800, 1 000, and 2 000 times. Additionally, both the application of a 3 000-fold dilution of GA4+7 and the practice of fruit bagging were designated as the control treatments, while a water spray was utilized as the blank control. The fruit rust index and the incidence of rust-infected fruits were evaluated to assess the effectiveness of control measures for fruit rust in Golden Delicious apple cultivation. ［Results］ The application of Xiulijing, with dilutions ranging from 200 to 2 000 times, exhibited a significant impact on reducing both the fruit rust index and the incidence of rust-infected fruits in Golden Delicious apples. The application of a 1 000-fold dilution of Xiulijing resulted in a statistically significant reduction in both the fruit rust index and the incidence of rust-infected fruits, with reduction rates of 21.1% and 31.5%, respectively. Among the various strategies for the prevention and control of apple rust, fruit bagging emerged as the most effective method. The other two technical measures demonstrated significant control effects; however, no substantial differences were observed between them. ［Conclusions］ The biological control agent Xiulijing is more deserving of promotion and application in practical production due to its significantly superior economic benefits, safety, and stability. |
