STUDIES ON ALTERNATE HOSTS OF THE RUST PUCCINIA-CANALICULATA, A POTENTIAL BIOLOGICAL-CONTROL AGENT FOR NUTSEDGES

被引：7

作者：

CALLAWAY, MB ^{[1
]}

PHATAK, SC ^{[1
]}

WELLS, HD ^{[1
]}

机构：

[1] USDA, COASTAL PLAIN EXPT STN, DEPT HORT, TIFTON, GA 31793 USA

来源：

PLANT DISEASE | 1985年 / 69卷 / 11期

关键词：

D O I：

10.1094/PD-69-924

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Puccinia canaliculata is a potential biological control agent for purple (Cyperus rotundus) and yellow (C. esculentus) nutsedges. In 1905, Xanthium canadense L.was shown to be an alternate host for P. canaliculata. After extensive surveys, the aecial stage has not been found occurring naturally on X. strumarium in Georgia, [USA]. Inoculation studies demonstrated that S. strumarium and Helianthus annuus are alternate hosts. Inoculation studies were also carried out on Cosmos bipinnatus with inclusive results. Inoculations on alternate hosts may offer a simple method for developing more universally virulent rust strains to overcome variations in susceptibility among nutsedge ecotypes.

引用

页码：924 / 926

页数：3

共 11 条

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[9]

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