Articles
BIOLOGICAL CONTROL OF FUSARIUM IN GLADIOLUS WITH NON-PATHOGENIC FUSARIUM ISOLATES
Article number
325_113
Pages
769 – 780
Language
Abstract
Pretreatment of gladiolus corms with spores of a non-pathogenic Fusarium isolate before corms were planted in soil infested with Fusarium oxysporum f.sp. gladioli reduced disease severity.
Corms were dipped in a spore suspension of a non-pathogenic Fusarium isolate and incubated under moist conditions at 20°C before they were planted in infested soil.
An incubation period of 2 days gave the largest differences between pretreated corms and control corms dipped in water.
Pretreatment of corms with heat-killed spores or culture filtrates of pathogenic or non-pathogenic isolates had no protective effect.
Disinfection of pretreated corms in 2% formaldehyde after the incubation period and before planting neutralized the effect of the pretreatment.
Corms were dipped in a spore suspension of a non-pathogenic Fusarium isolate and incubated under moist conditions at 20°C before they were planted in infested soil.
An incubation period of 2 days gave the largest differences between pretreated corms and control corms dipped in water.
Pretreatment of corms with heat-killed spores or culture filtrates of pathogenic or non-pathogenic isolates had no protective effect.
Disinfection of pretreated corms in 2% formaldehyde after the incubation period and before planting neutralized the effect of the pretreatment.
Reduction of disease could be obtained with different non-pathogenic isolates of F. oxysporum or F. proliferatum.
Publication
Authors
E.J.A. Roebroeck, J.J. Mes
Keywords
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