Biological control of the basal stem rot disease of tomato caused by<i>Corticium rolfsii</i>(Sacc.) Curzi in Northern Nigeria

Wokocha, RC; Ebenebe, A. C.; Erinle, I. D.

doi:10.1080/09670878609371024

Cited by 16 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although no statistical data are available, disease caused by this pathogen lead to heavy losses in vegetable crop yield especially during the wet season (May and October) when weather conditions are favorable for both crop production and for the growth and dissemination of the sclerotia of the pathogen (Wokocha et al, 1986). These sclerotia constitute the primary inoculum of the pathogen as well as its principle means of dispersal and the sole organs by which the fungus survives adverse environmental conditions, awaiting germination and infection of susceptible hosts when favorable conditions return (Wokocha, 1988;Okabe et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

In vitro growth of four isolates of Sclerotium rolfsii Sacc in the humid tropics

Okereke¹,

V.²,

Wokocha³

et al. 2007

Afr. J. Biotechnol.

View full text Add to dashboard Cite

Investigation was carried out on Sclerotium rolfsii isolated from four plant parts on PDA media for differences in the mycelia and sclerotia growth, in the tropical humid lowlands of Southeastern Nigeria. The result reveals that there were variation in the number and size (in diameter) of the sclerotia produced by the isolates. The mycelia growth rate was same in all the isolates covering the 9.0 cm plates at the 7 and 8 day after inoculation. These sclerotia constitute the major source of inoculum for the organism in nature.

show abstract

Section: Introductionmentioning

confidence: 99%

In vitro growth of four isolates of Sclerotium rolfsii Sacc in the humid tropics

Okereke¹,

V.²,

Wokocha³

et al. 2007

Afr. J. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Chet and Baker (1980) observed that soils that are naturally suppressible to R. solani contained a high A. niger T. harzianum B. cereus B. subtilis natural population of T. harzianum, while Strashnov et al (1985) reported that application of T. harzianum by coating tomato fruits reduced R. solani fruit rot by up to 85% under laboratory condition. T. harzianum has also been used in Northern Nigeria in control of basal stem rot diseases of tomato caused by Sclerotium (Corticum rolfsii) (Wokocha et al, 1986). Similarly, T. harzianum from New York soils have been used for biological control of cowpea seed rot caused by Pythium sp.…”

Section: Discussionmentioning

confidence: 99%

In-vitro inhibition of growth of some seedling blight inducing pathogens by compost-inhabiting microbes

Muhammad¹,

Amusa²

2003

Afr. J. Biotechnol.

View full text Add to dashboard Cite

Compost-inhabiting bacteria were studied for their effect on seedling blight inducing pathogens. Aspergillus niger, Trichoderma harzianum, Bacillus cereus and Bacillus subtilis were the microbes found associated with cow dung, sawdust and rice husk composted soils. Sclerotium rolfsii, Fusarium oxysporum, Pythium aphanidermatum and Macrophomina phaseolina were isolated from blighted seedlings of Cowpea, while S. rolfsii, P. aphanidermatum, Helminthosporium maydis and Rhizoctonia solani were isolated from blighted maize seedlings. When these compost-inhabiting microbes were paired with the seedling blight inducing pathogens, T. harzianum grew on the mycelia of all the test fungal pathogens. B. cereus reduced the mycelia growth of Sclerotium rolfsii, F. oxysporum, P. aphanidermatum, H. maydis and R. solani, with inhibitory zones ranging from 35.5% to 53.3%. B. subtilis in culture also inhibited the mycelia growth of all tested pathogenic fungi with inhibitory zones of between 40.0% to 57.8%. The inhibitory activities of the compost-inhabiting microbes might partly be responsible for the efficacy of compost in reducing seedling blight diseases of crops.

show abstract

“…Hyphal mat from 5 day old Potato broth cultures of the Pathogens were scraped asceptically onto a fine cheese cloth, filtered and washed in several changes of sterile distilled water to remove traces of stalling materials. The mat were then transferred asceptically into 200ml of distilled water containing 5 ml glucose solution in waring blender and homogenized for one minute at low speed in order to get the inocula ready for pathogenicity test on eggplant (Wokocha et al, 1986).…”

Section: Preparation Of the Inoculums Suspensionmentioning

confidence: 99%

Pathogenicity of fungi associated with the leaf spot disease of Eggplant (Solanum aethiopicum L.) in a derived savannah zone

Mbadianya¹

2013

IOSR-JAVS

View full text Add to dashboard Cite

A study was carried out on the leaf spot disease of eggplant (Solanum aethiopicum L.) in Nsukka derived savannah zone. Helminthosporium infestans Butler and Jones, Cladophialophora carrionii Trejos, Aspergillus niger Them and Rapet, Rhizopus nigricans Ehhrenb and Neurospora africana Shear and Dodge were isolated from the diseased plants. Helminthsporium.infestans was the most frequently isolated organism from the infected leaves (61.11%) being glaringly higher in frequency of occurrence than A. niger (5.56%), C. carrionii (11.11%), R. nigricans (5.56%) and N. africana (16.67%). The pathogenicity tests on susceptible eggplant variety Solanum aethiopicum L. using all fungal isolated, showed that only H. infestans was pathogenic on the test crop. It produces the characteristic symptom of dark brown spots with concentric rings on the leaves, which gave target board effect on 28 days after inoculation. H. infestans was re-isolated from the infected leaves of the Eggplant. The observation of the characteristic symptom of dark yellow-brown spots with concentric rings on the leaves and re-isolation of the pathogen from infected leaves confirmed that H. infestans incited the leaf spot disease on the leaves. The other fungi also isolated may have played a synergistic role in the disease development.

show abstract

Biological control of the basal stem rot disease of tomato caused byCorticium rolfsii(Sacc.) Curzi in Northern Nigeria

Cited by 16 publications

References 10 publications

In vitro growth of four isolates of Sclerotium rolfsii Sacc in the humid tropics

In vitro growth of four isolates of Sclerotium rolfsii Sacc in the humid tropics

In-vitro inhibition of growth of some seedling blight inducing pathogens by compost-inhabiting microbes

Pathogenicity of fungi associated with the leaf spot disease of Eggplant (Solanum aethiopicum L.) in a derived savannah zone

Contact Info

Product

Resources

About