文献类型： 外文期刊

作者： Li, Qincheng ¹ ; Shi, Jie ² ; Huang, Chaolong ¹ ; Guo, Jingfei ¹ ; He, Kanglai ¹ ; Wang, Zhenying ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

2.Hebei Acad Agr & Forestry, Plant Protect Inst, Baoding 071030, Peoples R China

关键词： fumonisins; Fusarium verticillioides; maize ear rot; Ostrinia furnacalis; symptomless infection; yield loss

期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）

ISSN： 0191-2917

年卷期： 2023 年 107 卷 5 期

页码：

收录情况： SCI

摘要： Field trials based on manual infestation of the Asian corn borer (ACB) (Ostrinia furnacalis [Guenee]) and Fusarium verticillioides (Nirenberg) atomization were conducted on four maize hybrids to investigate the relationship between ACB infestation and F. verticillioides infection, yield loss, and fumonisin contamination in maize. Analysis of fumonisins B1 and B2 was carried out using an LC-MS/MS system. In this study, manual ACB infestation significantly promoted F. verticillioides infection (both symptomatic and symptomless) and grain fumonisin levels. Ear rot incidence and severity, symptomless kernel infection, and fumonisin contamination were significantly correlated to each other and to ACB damage severity. Manual ACB infestation increased fumonisin levels from 580 to 4,418 mu g/kg in 2018; 6,059 to 10,681 mu g/kg in 2019 spring-sown maize (2019A); and 2,042 to 5,060 mu g/kg in 2019 summer-sown maize (2019B), with the threshold of the European Union (EU) being 4,000 mu g/kg. The threshold was exceeded in spring of 2019 in untreated controls. Regarding yield, significant negative correlation between ACB damage and ear weight was observed in three seasons. These results indicated that ACB infestation can lead to severe quality degradation and yield loss of maize. Kernel fumonisin levels may exceed the concentration threshold of the EU in certain conditions, threatening the health of livestock and humans. Measures should be taken to reduce ACB infestation to ensure food and feed security.