Control ofRhizoctonia solani in cotton by seed-coating withTrichoderma spp. spores

Elad, Y.; Kalfon, A.; Chet, I.

doi:10.1007/bf02183987

Cited by 29 publications

(19 citation statements)

References 7 publications

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“…Inoculation of planting material is the most economical way. Both methods are used to control damping-off in germinating seeds and seedlings (Merriman et al, 1974a, b;Chet et al, 1979;Harman et al, 1980;Elad et al, 1982). The control of damping-off is effective for about two weeks only.…”

Section: Methods Of Inoculationmentioning

confidence: 97%

Biological control of Rhizoctonia solani on potatoes by antagonists. 4. Inoculation of seed tubers with Verticillium biguttatum and other antagonists in field experiments

Jager¹,

Velvis²

1985

Netherlands Journal of Plant Pathology

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Inoculation of seed potatoes with the mycoparasite Verticillium biguttatum, isolate M73 (combined with Gliocladium roseum in 1981, either alone or mixed with isolate M180 plus antibiotics-producing isolates of Azotobacter chroococcum in 1982) repeatedly proved successful in reducing Rhizoctonia solani on stolons and stems. In field experiments, this ultimately led to a reduced formation of sclerotia on new tubers, particularly in neutral sandy loam and clay loam soils. In 1981 inoculation with antagonists led, when compared with no inoculation, to average reductions of 22 and 42% for the harvest from clean, and 15 and 26% for the harvest from infected seed tubers grown on slightly acid sandy soils and on neutral loam soils, respectively. The harvest from clean, inoculated seed tubers had the lowest sclerotium index. In 1982 inoculation of seed tubers planted in slightly acid sandy soils gave reductions of the sclerotium index of up to 22%. In the neutral marine loam soils considerable reductions were often achieved, viz., in slightly infected loams 51-68% and in rather heavily infected ones 4-43%. Chemical disinfection of seed tubers proved effective only in loam soils that were slightly infested with R. solani. In both years inoculation of seed tubers with antagonists led to significantly lower sclerotium indices of the harvest (p = 0.1% in 1981; p = 50/0 in 1982).V. biguttatum was present more frequently and in greater densities on stems and stolons of plants from inoculated than from non-inoculated seed tubers. The latter were colonized by wild V. biguttatum strains from the soil, apparently less effective antagonists.Early in the season, the soil temperature was too low for growth of V. biguttatum. Nevertheless, inoculation of tubers that were planted early resulted in a considerable control of R. solani.

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Section: Methods Of Inoculationmentioning

confidence: 97%

Biological control of Rhizoctonia solani on potatoes by antagonists. 4. Inoculation of seed tubers with Verticillium biguttatum and other antagonists in field experiments

Jager¹,

Velvis²

1985

Netherlands Journal of Plant Pathology

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“…The immediate addition of tested antagonists to the pathogen did not inhibit the disease development whereas a 10-day period was sufficient for settlement of Trichodermas in the substrate and effective action against P. cryptogea. The direct action of Trichoderma species on hyphe (Dennis and Webster, 1971 a, b), excretation of lytic enzymes (Elad et al, 1983) and drastic reduction of zoosporangia formation (Orlikowski et al, unpublished) probably influenced reduction of the population density of P. cryptogea in soil. The data obtained do not confirm results of Lifshitz et al (1984).…”

Section: Treatment Bmentioning

confidence: 99%

Studies on the Biological Control of Phytophthora cryptogea Pethybr. et Laff. II. Effectiveness of Trichoderma and Gliocladium spp. in the Control of Phytophthora Foot Rot of Gerbera

Orlikowski

1995

Journal of Phytopathology

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Bip T containing about 109 spores of Trichoderma viride, applied to peat 10 days before inoculation of substrate with Phytophthora cryptogea, effectively controlled Phytophthora foot rot of gerbera. The biocide in dosage of 300 and 600 g/m3 inhibited the development of the pathogen in substrate. The other potential antagonists T. hamatum and T. viride applied into peat at a dosage of 600 g/m3, decreased Phytophthora foot rot development.

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“…Attempts at biological control of pathogens have frequently involved applying an antagonistic microorganism to the plant (Backman and Kabana, 1975;Elad et al, 1980;Elad et al, 1981;Elad et al, 1982;Harman et al, 1980;Papavizas, 1982). To be successful, the antagonist should preferably be able to multiply on and colonize the plant surface (Harman et al, 1980).…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of a new antifungal metabolite ofTrichoderma reesei

et al. 1988

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A mycelial extract of Trichoderma reesei (P-12) was separated into four fractions by high performance liquid chromatography (HPLC). Out of these, two were found to exhibit antifungal activity when tested against plant pathogenic fungi. The level of antifungal compounds was higher in media containing glucose as the carbon source as compared to one containing cellulose. The synthesis of these antifungal compounds started after 3 days of inoculation at 30~ and continued upto 8 days. No further increase was recorded beyond this period.

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Control ofRhizoctonia solani in cotton by seed-coating withTrichoderma spp. spores

Cited by 29 publications

References 7 publications

Biological control of Rhizoctonia solani on potatoes by antagonists. 4. Inoculation of seed tubers with Verticillium biguttatum and other antagonists in field experiments

Biological control of Rhizoctonia solani on potatoes by antagonists. 4. Inoculation of seed tubers with Verticillium biguttatum and other antagonists in field experiments

Studies on the Biological Control of Phytophthora cryptogea Pethybr. et Laff. II. Effectiveness of Trichoderma and Gliocladium spp. in the Control of Phytophthora Foot Rot of Gerbera

Isolation and characterization of a new antifungal metabolite ofTrichoderma reesei

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