Efficacy and profitability of fungicide use to manage Curvularia leaf spot of maize,Crop Protection

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Efficacy and profitability of fungicide use to manage Curvularia leaf spot of maize
Crop Protection ( IF 2.5 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.cropro.2020.105126
Jun-Jie Hao , Wei-Ling Zhu , Yong-Qiang Li , Jia-Zhong Liu , Shu-Na Xie , Jing Sun , Zhong-Dong Dong

Abstract Maize leaf spot disease, caused by Curvularia lunata, significantly reduces maize yield. Maize growers in China have been continuously challenged with controlling this disease. Maize is a tall and densely planted crop, and the motivation of farmers to perform disease control is affected by various aspects, such as the timing of disease control, types of fungicides and application methods, the effectiveness of the fungicides, and profitability. This study used maize inoculated and not inoculated with the pathogen Curvularia lunata under three conditions: fungicide treatment applied post-inoculation, fungicide treatment applied pre-inoculation, and fungicide application without inoculation (natural field conditions). We selected maize plants at growth stage V12 and performed a single fungicide application, then compared the characteristics and profitability of six types of fungicides on maize leaf spot disease. Under these conditions, all fungicide treatments resulted in a significantly lower number of leaf spots and lower disease index than the control group (P

更新日期：2020-06-01

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