Septoria helianthi

Ellis & Kellerman

(和名データなし)

GBIF 観察データ数

国内: , 海外: 409

GBIFで「Septoria helianthi」を検索

iNaturalist 観察データ数(研究用のみ)

国内: , 世界: -

iNaturalist(国内) iNaturalist(全世界)

同属掲載種の一覧 94

数字はGBIF観察データ数(2024/12):国内、456海外

海外のサイト一覧 1件

掲載サイト リンク
pflanzenkrankheiten.ch
[1]

掲載論文

1件
R3-07834
オーストリアにおいてヒマワリに生じたCercospora helianthicolaおよびSeptoria helianthinaの初報告
First report of Cercospora helianthicola and Septoria helianthina on Helianthus annuus in Austria
大菌輪-論文3行まとめ
オーストリア、シュタイアーマルク州においてヒマワリの葉に生じた斑点病を検討した。
2種の病原菌をそれぞれCercospora helianthicolaおよびSeptoria helianthinaと同定した。
オーストリアのヒマワリにおける両種の発生は初報告となった。

病害

サイズ
(Yellowish spots up to 1,5 cm develop over the whole lamina, gradually turning necrotic and becoming almost black. The numerous pycnidia are mostly on the adaxial surface. The lesions have a polygonal outline, being sharply delimited by the veins. Infection may begin on the cotyledons and young leaves, spreading to later developing leaves. Severe attacks lead to defoliation and loss in yield.) Yellowish spots up to 1,5 cm develop over the whole lamina, gradually turning necrotic and becoming almost black. The numerous pycnidia are mostly on the adaxial surface. The lesions have a polygonal outline, being sharply delimited by the veins. Infection may begin on the cotyledons and young leaves, spreading to later developing leaves. Severe attacks lead to defoliation and loss in yield. [1]
(reaching 10 mm diam.) reaching 10 mm diam. [2]

transmission

基質
Overwintering occurs in host debris. Seed treatment is recommended although seed transmission does not appear to have been demonstrated. Introduction of the fungus into Hungary may have been via seed (43, 2013) [1]

参考文献

[1] https://www.mycobank.org/details/26/14244
[2] https://www.mycobank.org/details/26/18999

※上の表のデータは記載文から半自動的に抽出されたものです。正確な情報は必ず元の文献で確認してください。

Notice: The data in the table above is semi-automatically extracted from the description. Please be sure to check the original documents for accurate information.