Effect of Aviation Spray Adjuvant on Improving Control of Fusarium Head Blight and Reducing Mycotoxin Contamination in Wheat

Xiaojing Yan, Ming Wang, Yuxiao Zhu, Xin Shi, Xiaohui Liu, Yixuan Chen, Jun Xu, Daibin Yang and Huizhu Yuan
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Xiaojing Yan: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Ming Wang: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Yuxiao Zhu: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Xin Shi: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Xiaohui Liu: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Yixuan Chen: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Jun Xu: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Daibin Yang: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Huizhu Yuan: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China

Agriculture, 2021, vol. 11, issue 12, 1-13

Abstract: Fusarium head blight (FHB) and its mycotoxin contamination are among the main factors affecting wheat yield and quality. There is an urgent need to develop an efficient strategy to prevent and control the FHB disease and reduce the mycotoxin level in the wheat product. As a triazolinthione fungicide, prothioconazole is an effective broad-spectrum fungicide to control various diseases of wheat by foliar spraying. However, prothioconazole has potential harm to the female reproductive system, and its metabolism prothioconazole-desthio has teratogenicity. Considering this point, the plant protection unmanned aerial vehicles (UAVs) are undoubtedly a suitable choice for the field application of prothioconazole. In this work, by spraying 30% prothioconazole dispersible oil suspensions, we report that aviation spray adjuvant of methylated vegetable oil influences the control effect of wheat head blight, wheat yield, prothioconazole residues, and mycotoxin deoxynivalenol (DON) content. Adding 1.0% aviation spray adjuvant to the spray solution can significantly increase the droplet density and deposition amount in different layers of wheat canopy. The wheat yield increased by 6.94% compared with the treatment areas without spray adjuvant. Meanwhile, the prothioconazole and DON mycotoxin were not detected in the wheat grains. Based on these results, we conclude that the addition of aviation spray adjuvant can also not only ensure the high control effect of prothioconazole on FHB in wheat and increase wheat yield, but also greatly reduce the content of DON mycotoxin and ensure the safety of wheat production. This study is expected to provide theoretical guidance and data support for applying spray adjuvants in the field of plant protection UAVs in modern intensive sustainable agriculture.

Keywords: aviation spray adjuvant; UAV; prothioconazole; Fusarium head blight; mycotoxin; pesticide residue (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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