Evaluations of fortified fungicide solutions in managing corm rot disease of gladiolus caused by Fusarium oxysporum

Ram, Raja; Manuja, Sandeep; Dhyani, D.

doi:10.1016/j.cropro.2003.12.006

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…A relationship was found between F. oxysporum and disease suppression by introducing T. harzianum into the soil. Raaijmakers et al (1999) and Ram et al (2004) found a negative relationship between Fluorescent pseudomonas density in the rizosphere and disease incidence. Our results agree with what previously reported about population densities of Fluorescent pseudomonads which show a decrease with time.…”

Section: Discussionmentioning

confidence: 98%

The Efficiency of Trichoderma harzianum and Aneurinobacillus migulanus in the Control of Gladiolus Corm Rot in Soil-Less Culture System

Walid¹

2010

American Journal of Agricultural and Biological Sciences

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Problem statement: Gladiolus is cultivated commonly for cut flower production, frequently as a protected crop. The glasshouse or polytunnel environment, providing excellent conditions for flower production, also make conditions more favorable for disease to develop. Approach: The pathogen Fusarium oxysporum f. sp. gladioli causes wilt diseases in a wide range of economically important plants and can have devastating effects on crop production. Trichoderma harzianum and Aneurinobacillus migulanus were tested separately and in combination for controlling F. oxysporum f. sp. gladioli activity in soilless culture using Perlite as the substrate. Results: The efficiency of both of antagonists against corm rot was evaluated based on vegetative and root growth parameters and on flowering parameters. T. harzianum was more effective than A. migulanus in disease suppression and also enhanced plant growth, increased flower production and quality. A. migulanus enhanced plant growth when tested alone. The mixture of antagonists reduced the efficiency of T. harzianum. Numbers of T. harzianum CFU in the substrate and on corms increased following application compared with treating with both antagonists. No T. harzianum was detected in the substrate by 120 day after planting, however, A. migulanus CFU significantly decreased on corms when inoculated in combination with T. harzianum and F. oxysporum f. sp. gladioli. However, A. migulanus CFU was not detected in the substrate of the same combination. SEM and Glasshouse results suggested that suppressive mechanisms of T. harzianum and A. migulanus differed. T. harzianum appeared to operate through a combination of antibiosis and substrate competition, whereas A. migulanus produced an electron-dense substance which may have inhibited the penetration of host tissues by F. oxysporum f. sp. gladiolus. Greater growth of T. harzianum was observed when inoculated alone or with F. oxysporum f. sp. gladioli hyphae. Conclusion: It was concluded that T. harzianum provided a more efficient and effective control of F. oxysporum f. sp. gladioli corm rot of Gladiolus when inoculated without A. migulanus

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Section: Discussionmentioning

confidence: 98%

The Efficiency of Trichoderma harzianum and Aneurinobacillus migulanus in the Control of Gladiolus Corm Rot in Soil-Less Culture System

Walid¹

2010

American Journal of Agricultural and Biological Sciences

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“…In the greenhouse trials benomyl was most effective especially as a soil drench for three application. Ram et al, (2004) reported that benomyl was the most effective treatment for the control of corn rot caused by Fusarium oxysporum f.sp. gladioli, followed by carbendazim.…”

Section: Effect Of Soil Drenching On Wilt Incidencementioning

confidence: 99%

Efficacy of Fungicides in Control of Fusarium oxysporum f. sp. dianthi, the Cause of Wilt in Carnation

Manasa¹,

Somashekara²,

Shankara³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…Strategies in use today include hot-water treatment of corms and cormels (30 min at 57°C) and fungicide drenches (Magie 1971), but more effective controls are needed. Ram et al (2004) found that soaking corms in acidified solutions of benomyl for 60 min gave the best protection against corm rot. However, other authors have found that benzimidazoles were not effective, probably because of tolerant strains being transported on the corms (Magie 1975).…”

Section: Introductionmentioning

confidence: 98%

Efficacy of preplant treatments of gladiolus corms with combinations of acibenzolar-S-methyl and biological or chemical fungicides for suppression of fusarium corm rot [Fusarium oxysporumf. sp.gladioli]

Elmer¹

2006

Canadian Journal of Plant Pathology

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In 2003In -2005, corms of gladiolus (Gladiolus ×hortulanus) susceptible to Fusarium oxysporum f. sp. gladioli were soaked for 30 min in Actigard ® 50WP (50% in wettable powder; acibenzolar-S-methyl (ASM)), with or without biological or chemical fungicides, to determine if any treatment or combination of treatments provided season-long suppression of fusarium corm rot in the fields in Hamden, Connecticut, United States. Corms treated with ASM produced 48% more marketable flower spikes than untreated corms, and the value of the area under the disease progress curve (AUDPC) was reduced by 12%. However, this reduction was not significant. The chemical fungicides Medallion ® 50WP (fludioxonil) and Terraguard™ 50WP (triflumizole) reduced the AUDPC by 27% and 23%, respectively, and almost doubled the number of marketable flower spikes. None of the biological fungicides (Actinovate™ SP (water-soluble powder), Companion ® , MycoStop ® , and PlantShield™), nor the chemical fungicide 3336™ 50WP, were effective in reducing the AUDPC or increasing the number of spikes. No interactions were noted between ASM and the fungicides, except when ASM was combined with Heritage™ 50WP (azoxystrobin). ASM and Heritage 50WP used separately were not effective in reducing the AUDPC but, when combined, they provided season-long suppression of corm rot. Continued research on ASM may lead to an effective new strategy for reducing corm rot on gladiolus and related ornamentals. Résumé :De 2003 à 2005, des bulbes de glaïeuls (Gladiolus ×hortulanus) sensibles au Fusarium oxysporum f. sp. gladioli ont été trempés durant 30 min dans des bains contenant de l'Actigardz 50PM (50% en poudre mouillable; acibenzolar-Sméthyle (ASM)), en association ou non à des fongicides biologiques ou de synthèse, afin de déterminer quels traitements ou combinaisons de traitements procure une protection contre la pourriture fusarienne du bulbe pour toute la saison aux champs à Hamden, Connecticut, États-Unis. Les bulbes traités à l'ASM ont produit 48% plus d'épis floraux commercialisables que les bulbes non traités et avaient une valeur de surface sous la courbe de progression de la maladie (SSCPM) de 12% inférieure. Cependant, cette réduction n'était pas significative. Les fongicides de synthèse Medallionz 50PM (fludioxonile) et Terraguard{ 50PM (triflumizole) ont diminué les valeurs de la SSCPM de 27% et 23%, respectivement, et ont presque doublé le nombre d'épis floraux commercialisables. Aucun des fongicides biologiques (Actinovate{ PS (poudre soluble dans l'eau), Companionz, MycoStopz et PlantShield{), ni le fongicide chimique 3336{ 50PM, n'ont pu réduire la SSCPM ou augmenter le nombre d'épis. Il n'y a pas eu d'interactions observées entre l'ASM et les fongicides, sauf pour la combinaison ASM et Heritage{ 50PM (azoxystrobine). L'ASM et Heritage 50PM utilisés séparément ne réduisaient pas la SSCPM, mais lorsque utilisés ensemble, ils procuraient une protection contre la pourriture du bulbe pour toute la saison. De la recherche additionnelle sur l'utilisation de l'...

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Evaluations of fortified fungicide solutions in managing corm rot disease of gladiolus caused by Fusarium oxysporum

Cited by 13 publications

References 3 publications

The Efficiency of <i>Trichoderma harzianum</i> and <i>Aneurinobacillus migulanus</i> in the Control of Gladiolus Corm Rot in Soil-Less Culture System

The Efficiency of <i>Trichoderma harzianum</i> and <i>Aneurinobacillus migulanus</i> in the Control of Gladiolus Corm Rot in Soil-Less Culture System

Efficacy of Fungicides in Control of Fusarium oxysporum f. sp. dianthi, the Cause of Wilt in Carnation

Efficacy of preplant treatments of gladiolus corms with combinations of acibenzolar-S-methyl and biological or chemical fungicides for suppression of fusarium corm rot [Fusarium oxysporumf. sp.gladioli]

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