Globisporangium irregulare and G. ultimum var. sporangiiferum were recently reported to be associated with soybean damping-off in Brazil. Currently, there is no known information about fungicide seed treatments for soybean. Thus, the objective of this study was to evaluate the efficacy of commercial fungicide-based products to control soybean damping-off caused by G. irregulare and G. ultimum var. sporangiiferum. The experiments were performed with 15 seed treatments (non-treated check, Certeza N, Apron RFC, Maxim, Maxim XL, Maxim Quattro, Maxim Advanced, Vitavax Thiram, Standak Top, Spectro, Verango, Derosal Plus, Carbendazim, Attic and Rancona T) and two soybean cultivars (‘DM57i52’ and ‘NEO530’). In vitro assays were performed to verify the effect of seed treatments on seed germination and seed rot, whereas growth chamber assays were conducted to evaluate the effect of seed treatments on emergence, root rot and seedling dry mass. Products that contain metalaxyl-M were the most effective at controlling damping-off caused by G. irregulare and G. utimum var. sporangiiferum followed by products that contain thiram. Overall, Apron RFC, Maxim Advanced and Maxim Quattro had higher efficacy to reduce damping-off caused by either G. irregulare or G. ultimum var. sporangiiferum therefore, can be recommended for seed treatment of soybean.

Globisporangium invoicee和G. ultimum var. 最近有报道称孢子囊菌与巴西的大豆猝倒有关。目前，没有关于大豆杀菌剂种子处理的已知信息。因此，本研究的目的是评估基于商业杀菌剂的产品控制由不规则G.和G. ultimum var.引起的大豆猝倒病的功效。孢子囊. 实验采用 15 种种子处理（未处理的检查、Certeza N、Apron RFC、Maxim、Maxim XL、Maxim Quattro、Maxim Advanced、Vitavax Thiram、Standak Top、Spectro、Verango、Derosal Plus、Carbendazim、Attic 和 Rancona T ) 和两个大豆品种（“DM57i52”和“NEO530”）。进行体外试验以验证种子处理对种子萌发和种子腐烂的影响，而进行生长室试验以评估种子处理对出苗、根腐病和幼苗干重的影响。含有甲霜灵-M 的产品在控制由不规则G.和G. utimum var. 孢子囊其次是含有福美双的产品。总体而言，围裙RFC，马克西姆高级和马克西姆Quattro的具有更高的功效，以减少猝倒造成任一G.不规则型或G.霉变种 因此，sporangiiferum可推荐用于大豆的种子处理。