| 李金峰,姜延军,史广亮,韩菊红,李青梅,梁 冰,胡珍娣,柳建伟.15%苯甲?吡唑酯微乳剂对苹果黑星病和锈病最低有效防治剂量筛选[J].中国南方果树,2025,54(4): |
| 15%苯甲?吡唑酯微乳剂对苹果黑星病和锈病最低有效防治剂量筛选 |
| Screening of the Minimum Effective Control dose of Difenoconazole?pyraclostrobin 15% ME on Apple Scab and Rust |
| 投稿时间：2024-07-11 修订日期：2024-09-18 |
| DOI： |
| 中文关键词: 纳米杀菌剂 苹果黑星病 苹果锈病 浓度筛选 防治效果 |
| 英文关键词:nano-fungicide Apple scab Apple rust concentration screening control effect |
| 基金项目:甘肃省陇原青年英才项目资助(甘人社通[2023]142号)；平凉市科技计划项目(平科任[2021] 23号)；江苏省重点研发计划（现代农业）（BE2021303）。。 |
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| 中文摘要: |
| 为明确纳米杀菌剂15%苯甲?吡唑酯ME对苹果黑星病和锈病的最低有效防治剂量，设置由低到高5组不同剂量处理进行田间防效测定。结果表明：纳米杀菌剂15%苯甲?吡唑酯ME对苹果黑星病和锈病均有较好的防治效果。针对苹果黑星病，0.5 mL/L处理防效最高，末次药15 d和30 d后的防治效果均在95%以上，药剂效益为7.93。0.3 mL/L和0.4 mL/L处理次之，防治效果为74.52%~85.70%，药剂效益分别为11.64和8.93，分别是0.5 mL/L处理药剂效益的1.47倍和1.13倍；各处理对苹果锈病的防治效果均能达到80%以上，其中0.5 mL/L处理防效最高，两次调查防效均为100%，药剂效益为8.33，0.1 mL/L处理的防效最低，两次调查防效分别为86.16%和83.94%，药剂效益为34.95，是0.5 mL/L处理药剂效益的4.2倍。以减少农药施用量，确保防治效果和提高经济效益为原则，筛选出苹果黑星病最低有效防治剂量为0.3 mL/L；苹果锈病最低有效防治剂量为0.1 mL/L。如遇苹果黑星病和锈病同时大发生年可直接喷施0.3 mL/L纳米农药15%苯甲?吡唑酯ME进行防治。 |
| 英文摘要: |
| This study aims to determine the minimum effective control dose of nano-pesticide difenoconazole?pyraclostrobin 15% ME on apple scab and rust. five groups of different doses from low to high were set up to determine the field control effect. The results showed that the nano-pesticide difenoconazole?pyraclostrobin 15% ME had a good control effect on apple scab and rust. For apple scab, the control effect of 0.5 mL / L treatment was the highest, and the control effect was more than 95 % after 15 d and 30 d of the last drug, and the benefit of the drug was 7.93. The control effects of 0.3 mL / L and 0.4 mL / L treatments were 74.52 % -85.70 %, and the pesticide benefits were 11.64 and 8.93, respectively, which were 1.47 times and 1.13 times that of 0.5 mL / L treatment. The control effect of each treatment on apple rust can reach more than 80 %. Among them, the control effect of 0.5 mL / L treatment was the highest, and the control effect of the two surveys was 100 %. The pesticide benefit was 8.33, and the control effect of 0.1 mL / L treatment was the lowest. The control effects were 86.16 % and 83.94 %, respectively, and the pesticide efficiency was 34.95, which were 4.2 times the benefit of 0.5 mL / L treatment. In order to reduce the amount of pesticide application, ensure the control effect and improve the economic benefit, the minimum effective control dose of apple scab was 0.3 mL / L. The minimum effective control dose of apple rust was 0.1 mL / L. In the case of apple scab and rust at the same time, 0.3 mL / L nano-pesticide difenoconazole?pyraclostrobin 15% ME can be directly sprayed to prevent and control. |
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