Oomycetes species are widely distributed and represent a significant threat to horticulture, forestry and agriculture. Several factors, such as initial health condition of the plants, date of transplant, environmental conditions and crop management practices contribute to the incidence of these pathogens, leading to important economic losses. Despite the importance of the diseases caused by Oomycetes in vegetable crops in Corrientes (Argentina), there is a serious lack of information about host-pathogen interaction, which makes it difficult to establish efficient control strategies. The objective of this work was to characterize and identify pathogenic oomycetes of strawberry crown and roots in Corrientes. A total of 7 isolates were obtained after field sampling. Morphological and molecular characterization was carried out as well as pathogenicity tests. Five different species of oomycetes were identified: Pythium irregulare, Pythium spinosum, Phytophthora cactorum, Phytopythium vexans and Phytopythium mercuriale. To our knowledge, this is the first record of Pythium irregulare, Phytopythium mercuriale and P. vexans in strawberry in Argentina.

卵菌物种分布广泛，对园艺、林业和农业构成重大威胁。一些因素，例如植物的初始健康状况、移植日期、环境条件和作物管理实践，都会导致这些病原体的发生，从而导致重大的经济损失。尽管在科连特斯（阿根廷）蔬菜作物中由卵菌引起的疾病很重要，但严重缺乏关于宿主-病原体相互作用的信息，这使得难以建立有效的控制策略。这项工作的目的是表征和鉴定草莓的致病性卵菌冠和根在科连特斯。现场取样后共获得7株。进行了形态学和分子表征以及致病性测试。鉴定了五种不同种类的卵菌：不规则腐霉、棘腐、疫霉、维克氏和汞疫霉。据我们所知，这是阿根廷草莓中首次发现不规则腐霉、Phytopythium mercuriale和P. vexans。