ABSTRACT The aim of this work was to fill the gap in California pest management by evaluating coverage and spatial uniformity of spray rig designs used in California strawberry production. Coverage can be improved up to 30% if the important design parameters are identified, which would reduce pests. Field evaluations were conducted in beds with 4 canopy lines in Santa Maria, CA on 162 cm beds and in Oxnard, CA on 172 cm beds as well as in beds with 2 canopy lines in Watsonville, CA on 122 cm beds and 132 cm beds. Water-sensitive paper cards placed adaxial and abaxial, both horizontally and vertically on plant canopies located near the middle and edge of the bed were used as the evaluation criteria. Data were analyzed by regression. Results from spray evaluations (n = 21) included recording the nozzle used, manifold height, number of nozzles per bed, volume sprayed, nozzle pressure, and tractor speed, as well as determining the percent coverage from 1,568 water-sensitive spray cards. Increasing nozzle pressure can potentially increase coverage by 9.18%. Positioning the nozzle closer to the canopy level can also significantly increase coverage.

中文翻译：

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使用水敏纸对加州草莓喷洒装置设计的评估

摘要这项工作的目的是通过评估加州草莓生产中使用的喷洒设备设计的覆盖范围和空间均匀性来填补加州害虫管理的空白。如果确定了重要的设计参数，覆盖率可以提高 30%，这将减少害虫。实地评估是在加利福尼亚州圣玛丽亚的 162 厘米病床和加利福尼亚州奥克斯纳德的 172 厘米病床以及加利福尼亚州沃森维尔的 2 条病冠线病床的 122 厘米病床和 132 厘米病床中进行的。以水平和垂直放置在靠近床的中间和边缘的植物冠层上的水敏纸卡作为评价标准。通过回归分析数据。喷雾评估的结果 (n = 21) 包括记录使用的喷嘴、歧管高度、每张床的喷嘴数量、喷雾量、喷嘴压力和拖拉机速度，以及确定 1,568 张水敏喷雾卡的覆盖率。增加喷嘴压力可能会增加 9.18% 的覆盖率。将喷嘴靠近顶篷水平放置也可以显着增加覆盖范围。