杀菌剂选择,疾病风险和种植者切换行为
Jae Young Hwang1, Sharmodeep Bhattacharyya2, Shirshendu Chatterjee3
1USDA-ARS, National Forage Seed Production Research Center, Corvallis, Oregon, United States; jaeyoung.hwang@usda.gov.
Plant disease
|April 3, 2025
概括
蜂种植者经常根据疾病发病率和应用时间从非合成杀菌剂转向合成杀菌剂. 了解这些杀菌剂切换行为是有效的疾病管理和减少合成输入的关键.
科学领域:
- 农业科学 农业科学
- 植物病理学 植物病理学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 在蜂种植中有效的疾病管理需要关于农药应用的战略决策,包括类型,频率和时间.
- 蜂粉 (Podosphaera macularis) 构成一个重大挑战,需要种植者调整他们的杀菌策略.
研究的目的:
- 开发预测模型来估计蜂种植者在非合成,合成或混合杀菌剂应用之间切换行为.
- 确定影响种植者转换杀菌剂类型的决定的关键因素,以控制蜂粉.
主要方法:
- 利用二进制和多项物流回归模型来分析杀菌剂切换模式.
- 采用随机森林分类算法来确定各种预测变量的重要性.
- 分析了与疾病发病率和季节性时间有关的种植者应用数据.
主要成果:
- 种植者主要使用非合成杀菌剂 (61.5%),并转向合成 (21.5%) 或混合 (17.0%) 应用.
- 切换的可能性与第一个非合成应用的时间有关,并且随着疾病发病率的增加而增加.
- 转换行为的关键预测因素包括一年的时间,种植者效应,首次应用日期,疾病发病率,修剪和品种易感性.
结论:
- 蜂种植者在关键作物易感期和疾病压力升高期间转向更强大的合成杀菌剂或混合物.
- 减少合成杀菌剂的使用与有效的疾病风险减轻策略密切相关.
- 了解种植者决策过程对于优化蜂生产中综合性害虫管理计划至关重要.
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