| 王坤春1, 孔令标2, 王国宾2*, 赵 硕2, 王会征2, 王士龙3.大豆玉米带状复合种植下植保无人机喷药防治大豆甜菜夜蛾[J].植物保护,2025,51(3):388-396. |
| 大豆玉米带状复合种植下植保无人机喷药防治大豆甜菜夜蛾 |
| Control effect of spraying pesticides with UAV against Spodoptera exigua in maize-soybean intercropping field |
| 投稿时间：2024-05-22 修订日期：2024-07-18 |
| DOI：10.16688/j.zwbh.2024290 |
| 中文关键词: 大豆玉米复合种植 植保无人机 甜菜夜蛾 雾滴沉积数 雾滴覆盖度 防效 |
| 英文关键词:maize-soybean intercropping UAV Spodoptera exigua number of droplet deposition droplet coverage control efficacy |
| 基金项目:国家自然科学基金(32302410) |
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| 中文摘要: |
| 为探究大豆玉米带状复合种植模式下对甜菜夜蛾Spodoptera exigua的有效防治, 使用极目EA-30XP植保无人机和大疆T40植保无人机开展喷药防治试验。以8∶2的比例配置诱惑红与100 g/L溴虫氟苯双酰胺悬浮剂、10%虱螨脲悬浮剂的混合液作为喷施药液, 评估植保无人机不同作业高度、喷液量和药剂使用量下的药剂雾滴沉积分布情况、对大豆甜菜夜蛾的防治效果以及作物安全性。结果表明, 极目植保无人机喷施雾滴粒径最小, 采用常温弥雾系统喷洒后雾滴沉积数和覆盖度较高, 且在上部、中部、下部不同冠层及叶片正面和背面都具有较高的沉积效果, 其中采用2.5 m作业高度和45 L/hm2喷液量时, 在冠层和叶片下部正面的雾滴沉积数分别可以达到64.7个/cm2和81.9个/cm2, 覆盖度分别为2.4%和3.1%;大疆植保无人机降低作业高度到1.5 m作业时, 在叶片正面覆盖度高, 可达7.7%。两款植保无人机在施药后7 d均可实现92.0%以上的防治效果, 所有处理中极目植保无人机作业高度2.5 m, 喷液量为45 L/hm2, 防治效果最佳(99.8%)。两款植保无人机大部分处理区均未发生明显药害, 植株均保持正常生长。以上研究对于植保无人机在大豆玉米带状复合种植模式下喷施药剂防治病虫害提供数据参考。 |
| 英文摘要: |
| To investigate the deposition distribution of pesticide droplets applied by plant protection UAVs in the strip intercropping mode of soybean and maize, as well as the control effect on Spodoptera exigua in soybean and crop safety, experiments were conducted using the EAVISION EA-30XP and DJI T40 plant protection UAVs. A mixed solution of lure red and 100 g/L broflanilide SC and lufenuron 10% SC was prepared at an 8∶2 ratio as the spray solution in field experiments by varying the operating height, spray volume and pesticide usage of the plant protection UAVs. The results showed that the EAVISION plant protection UAV had the finest droplet size, higher deposition numbers and coverage after spraying with the normal temperature misting system. It displayed high deposition effects on different canopy layers and on front and back of leaf surfaces. Specifically, with a working height of 2.5 m and a spray volume of 45 L/hm2, the droplet deposition numbers on the canopy and the front of the lower leaves could reach 64.7 droplets/cm2 and 81.9 droplets/cm2, with coverage of 2.4% and 3.1%, respectively. When the DJI plant protection UAV operated at reduced height to 1.5 m, the coverage on the leaf surface was high, reaching 7.7%. Both plant protection UAVs achieved a control efficacy of over 92.0% after seven days of spraying. The EAVISION plant protection UAV, operating at a height of 2.5 m and applying 45 L/hm2 of liquid, achieved the best control efficacy of 99.8%. Most treatment areas of both plant protection UAVs did not show significant phytotoxicity, and the plant growth remained normal. The above results provide valuable data reference for pesticide spraying in disease and pest control in intercropped maize-soybean using plant protection UAVs. |
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