Plant Disease (2021) 105, p. 706 (Beltran-Pena et al.)

H. Beltrán-Peña, R. Félix-Gastélum, M. Camacho-Tapia, Kamila C. Correia, G. Herrera-Rodríguez, R.S. García-Estrada and J.M. Tovar-Pedraza (2021)
First report of powdery mildew on Leucophyllum frutescens caused by Podosphaera xanthii in Mexico
Plant Disease 105 (3), 706-706
Abstract: During 2019 and 2020, ornamental Leucophyllum frutescens plants grown in Mexico were observed with powdery mildew symptoms. Initial symptoms of powdery mildew developed as irregular white colonies on upper leaf surfaces, which expanded as infections progressed. In severe infections, leaves became distorted, exhibiting premature defoliation. The fungus Podosphaera xanthii was isolated from the diseased plants. The identification was based on morphological characteristics and DNA sequence analysis. Pathogenicity of the isolates was demonstrated by inoculation and re-isolation.
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Database assignments for author(s): Juan Manuel Tovar-Pedraza

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Podosphaera xanthii	Leucophyllum (genus)	Mexico