First report of Pythium root rot of chrysanthemum in Vietnam and control with metalaxyl drench

被引：5

作者：

Luong T.M. ^{[1
]}

Huynh L.M.T. ^{[1
]}

Hoang H.M.T. ^{[2
]}

Tesoriero L.A. ^{[3
]}

Burgess L.W. ^{[4
]}

Phan H.T. ^{[5
]}

Davies P. ^{[6
]}

机构：

[1] Quang Nam Plant Protection Sub-Department, Tam Ky Quang Nam

[2] TTHUE Plant Protection Sub-Department, Hue

[3] Elizabeth Macarthur Agricultural Institute, Camden,NSW 2570

[4] Faculty of Agriculture, Food and Natural Resources, University of Sydney

[5] National Institute of Medicinal Materials, Hanoi

[6] Plant Breeding Institute, Faculty of Agriculture, University of Sydney, Camden

来源：

Australasian Plant Disease Notes | 2010年 / 5卷 / 1期

关键词：

Carbendazim; Metalaxyl; Cavity Spot; Pythium Aphanidermatum; Australasian Plant Disease Note;

D O I：

10.1071/DN10019

中图分类号：

学科分类号：

摘要：

This is the first report of Pythium root rot of chrysanthemum, and the pathogen responsible, Pythium aphanidermatum, from Quang Nam and TT Hue Provinces in Vietnam. The typical symptoms included stunting, wilting, and necrosis of the main, lateral and feeder rootlets. A black necrotic lesion girdling the lower stem was present in some diseased plants. The root rot commonly caused death of diseased plants and affected plants at all growth stages. The pathogen was also isolated from transplants affected by root rot, and sampled directly from boxes transported from Dalat, Lam Dong Province, the source of most transplants used in Quang Nam. Metalaxyl was shown to provide effective control of Pythium root rot in a field trial when used to dip transplants before planting, and as a regular drench. Metalaxyl also provided effective control of the disease in commercial crops on the farm where the field was located. © Australasian Plant Pathology ociety 2010.

引用

页码：51 / 54

页数：3

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