Vivek GuptaCCS Haryana Agricultural UniversityHisar-125001, Haryana, IndiaEmail: firstname.lastname@example.org
Host: Triticum aestivum L. (wheat)Disease name: Powdery mildew Pathogen name: Blumeria graminis (DC.) E.O. Speer f. sp. tritici Em. Marchal (syn. Erysiphe graminis DC. f. sp. tritici Em. Marchal)
Small, white pustules appear on the upper leaf surface; very rarely pustules are seen on the underside. The pustules form a cottony growth of fungal mycelium containing asexual conidia (oidia) often surrounded by cholorosis (prominent on the underside). As the infection progresses, the pustules coalesce and cover the whole leaf lamina. As the leaf matures, dark, roundish chasmothecia (cleistothecia) develop into a fungal mass. Ascospores develop in the chasmothecia and serve as long-term survival structures of the fungus.
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