The epidemiology of anthracnose disease of mango: inoculum sources, spore production and dispersal
作者:
R. D. FITZELL,
C. M. PEAK,
期刊:
Annals of Applied Biology
(WILEY Available online 1984)
卷期:
Volume 104,
issue 1
页码: 53-59
ISSN:0003-4746
年代: 1984
DOI:10.1111/j.1744-7348.1984.tb05586.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SUMMARYAnthracnose disease spreads within mango trees by water‐borne conidia ofColletotrichum gloeosporioidesvar.minor.Conidia were produced in lesions on leaves, defoliated branch terminals, mummified inflorescences and flower bracts. Conidia were trapped from these sources in the orchard during periods when anthracnose disease was developing both in flush growth and in flowers. The majority of conidia were trapped from lesions in young leaves.Conidia were produced in the laboratory from acervuli in leaf lesions over a wide temperature range (10–30°C) both in wet and humid (95–97% r.h.) conditions. Conidia would be present for dispersal within the tree throughout the entire season.Large numbers of conidia were trapped during prolonged periods of rain, and when these occurred during active growth or flowering, severe outbreaks of disease were recorded. No conidia were trapped following dews.Ascospores ofGlomerella cingulatavar.minorwere not trapped while the disease was active in the orchard. These spores do not appear to contribute to the infection cycle of mango anthr
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