Brown rot (BR) in relation to codling moth damage (CMD) is a key issue in apple production but the impact of these pests has not been assessed jointly. In addition, categorising cultivar reaction to these two pests for sustainable production systems could be essential for improving pest management. Therefore, in a 12-year study, 27 apple cultivars (9 scab-resistant, 9 commercial, and 9 old) were assessed for their reactions to BR in relation to CMD in integrated and organic production systems, and classified into 3 categories (“low”, “medium”, and “high”) based on their season-long BR and CMD incidences. Then the 12-year temporal BR and CMD progresses in each category were analysed by fitting three-parameter logistic functions to process data and then by deriving 5 model variables for BR and CMD incidences. Here, we showed BR-CMD relationships in both production systems, which indicated that final BR and CMD incidences were significantly higher in organic systems. Our results show that season-long BR and CMD incidences were “low” for most resistant cultivars, and “medium” or “high” for most commercial and old ones. The area under the disease and pest progress curves indicated consistent differences among all categories in both production systems; and they were used to differentiate cultivar reactions to BR and CMD. Based on these categories and BR-CMD relationships, here we developed a new brown rot and codling moth forecasting and management strategy (BRCM-FMS). BRCM-FMS and general pest management programme (GPMP) were then compared in an additional 4-year study. This was the first study to show that the BRCM-FMS reduced annual spray applications by 21.4–41.7% in integrated and 12.5–31.3% in organic production system compared to GPMP. Disease incidences in the two programmes were similar in all years, production systems and classification categories. Less sprays and similar disease incidences provide economic and environmental benefits for growers.

与苹果蠹蛾损害 (CMD) 相关的褐腐病 (BR) 是苹果生产中的一个关键问题，但尚未对这些害虫的影响进行联合评估。此外，为可持续生产系统对这两种害虫的品种反应进行分类对于改善害虫管理至关重要。因此，在一项为期 12 年的研究中，评估了 27 个苹果品种（9 个抗结星病、9 个商业品种和 9 个老品种）在综合和有机生产系统中对 BR 和 CMD 的反应，并将其分为 3 类（“低”、“中”和“高”）基于其整个季节的 BR 和 CMD 发生率。然后通过将三参数逻辑函数拟合到处理数据，然后通过推导 BR 和 CMD 发生率的 5 个模型变量来分析每个类别中的 12 年时间 BR 和 CMD 进展。这里，我们在两个生产系统中都显示了 BR-CMD 关系，这表明最终 BR 和 CMD 发生率在有机系统中显着更高。我们的结果表明，对于大多数抗性品种来说，整个季节的 BR 和 CMD 发病率“低”，而对于大多数商业和老品种来说，“中等”或“高”。病虫害进展曲线下的面积表明两个生产系统的所有类别之间存在一致的差异；它们被用来区分品种对​​ BR 和 CMD 的反应。基于这些类别和 BR-CMD 关系，我们在这里开发了一种新的褐腐病和苹果蠹蛾预测和管理策略 (BRCM-FMS)。然后在另外一项为期 4 年的研究中比较了 BRCM-FMS 和一般害虫管理计划 (GPMP)。这是第一项表明 BRCM-FMS 将年度喷雾施用量减少了 21 次的研究。与 GPMP 相比，综合生产系统占 4-41.7%，有机生产系统占 12.5-31.3%。两个项目中的疾病发病率在所有年份、生产系统和分类类别中都相似。更少的喷雾和类似的疾病发生率为种植者提供了经济和环境效益。