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Comparison of Droplet Deposition Control Efficacy on Phytophthora capsica and Aphids in the Processing Pepper Field of the Unmanned Aerial Vehicle and Knapsack Sprayer

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Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, College of Agriculture, Shihezi University, Shihezi 832002, China
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College of Mechanical and Electrical Engineering, Hainan University, Haikou 570228, China
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Shandong Provincial Engineering Technology Research Center for Agricultural Aviation Intelligent Equipment, College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255022, China
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National Center for International Collaboration Research on Precision Agricultural Aviation Pesticide spraying Technology (NPAAC), College of Engineering, South China Agricultural University, Guangzhou 510642, China
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(2), 215; https://doi.org/10.3390/agronomy10020215
Received: 5 December 2019 / Revised: 21 January 2020 / Accepted: 25 January 2020 / Published: 2 February 2020
(This article belongs to the Section Farming Sustainability)
Processing pepper planting and processing have become an important red pillar industry in Xinjiang. With the continuous growth of processing pepper planting areas in Xinjiang, diseases and pests are increasing year by year. The aim of this study was to compare the droplet deposition and control efficiency of unmanned aerial vehicle (UAV) and electric air-pressure knapsack (EAP) sprayers on a processing pepper field. The UAV sprayer had a poor droplet coverage rate, droplet density, and deposition uniformity, but displayed the best deposition (1.01 μg/cm2, which was 98% more than the EAP sprayer). The control efficacy of the UAV sprayer on processing pepper fields with Phytophthora capsici and aphids was slightly lower than that of the EAP sprayer. When the UAV sprayer was used to control processing pepper diseases and pests, it could reduce the pesticide dosage on the premise of ensuring the control effect. Further study of the residue of high concentration pesticides in pepper fruit and environment sprayed by UAVs are needed. View Full-Text
Keywords: unmanned aerial vehicle; processing pepper; droplets deposition; Phytophthora capsici and aphids; control efficiency unmanned aerial vehicle; processing pepper; droplets deposition; Phytophthora capsici and aphids; control efficiency
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MDPI and ACS Style

Xiao, Q.; Du, R.; Yang, L.; Han, X.; Zhao, S.; Zhang, G.; Fu, W.; Wang, G.; Lan, Y. Comparison of Droplet Deposition Control Efficacy on Phytophthora capsica and Aphids in the Processing Pepper Field of the Unmanned Aerial Vehicle and Knapsack Sprayer. Agronomy 2020, 10, 215.

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