Systemic Activity of Benomyl against Fusarium Wilt of Pea and Tomato Plants

Fuchs, A.; Homans, A. L.; Vries, F.W. de

doi:10.1111/j.1439-0434.1970.tb03118.x

Cited by 24 publications

(9 citation statements)

References 12 publications

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“…It suggests that benomyl (or its conversion product benzimidazole carbamic acid, methyl ester (cf. Clemons and Sisler, 1969;Edgington, 1969, 1970;Fuchs et al, 1970)) displays its fungistatic activity without the mediation of plant metabolism. This implies that the activity of benomyl in vivo can be predicted with great certainty from data on in vitro inhibition of fungal growth (see, however, note on p. 300).…”

Section: Ascomycetesmentioning

confidence: 95%

“…, Fuchs et al (1970) Fuchs et al (1970 Delp and Klopping (1968a, b) Gutter (1969b) Harding (1968) Brown (1968, Delp and Klopping (1968b), Harding (1968) Delp and Klopping (1968a, b), Erwin et al (1968), Rawlins and Booth (1968), Erwin (1969, 1970a Delp and Klopping (1968 a, b) Delp and Klopping (1968a, b) Delp and Klopping (I968a, b) Worley and Harmon (1968) …”

Section: Cercospora Apff Cercospora Beticola Fusicladium Effusummentioning

confidence: 97%

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On the specificity of the in vitro and in vivo antifungal activity of benomyl

1970

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With respect to sensitivity to benomyl in vitro four categories of fungi were distinguished; taxonomically related fungi usually proved to belong to the same category. Within the form-class Deuteromycetes a correlation appeared to exist between sensitivity to this fungicide and morphogenesis of conidia. Phoma betae, in contrast to all other Phoma spp., was shownto be highly resistant to benomyl. This, however, may be expected on account of its perfect state.The data on the in vitro antifungal activity of benomyl conformed to those on the effectiveness of benomyl against plant diseases.

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Section: Ascomycetesmentioning

confidence: 95%

Section: Cercospora Apff Cercospora Beticola Fusicladium Effusummentioning

confidence: 97%

On the specificity of the in vitro and in vivo antifungal activity of benomyl

1970

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“…lycopersici (Sacc.) Snyder and Hansen (Biehn & Dimond, 1970; Fuchs, Homans & de Vries, 1970; Thanassoulopoulos, Giannopolitis & Kitsos, 1970) and on stem, leaf and fruit infection by Botrytis cinerea Fr. (Anon, 1971).…”

Section: Introductionmentioning

confidence: 99%

The effect of benomyl on the infection of tomatoes by Fusarium oxysporum f.sp. lycopersici and Botrytis cinerea

Channon

Thomson

1973

Annals of Applied Biology

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S U M M A R YIn glasshouse experiments at Auchincruive, drench applications of benomyl (100 or 142 mg per plant) to the soil surface around the stem bases of pot-grown tomato plants before inoculation with Fusarium oxysporum fsp. lycopersici reduced the penetration of the fungus up the stems and/or decreased the development of vascular discoloration and associated severity of wilting. Similar drenches applied after establishment of the fungus in the stems either halted or considerably retarded the growth of the pathogen up the vessels. This again was reflected in reduced vascular discoloration and wilt symptoms.In experiments with benomyl over 2 years at a commercial holding in Argyll, the application of soil drenches (at the rates above) shortly after planting out and again 5 weeks later, coupled with a programme of stem and foliar sprays (at 0.05 yo a.i.) during the summer, reduced the development of stem lesions caused chiefly by Botrytis cinerea and increased the general survival of plants more than did drench or spray treatments alone. There were indications that 'ghost spotting' of the fruit, particularly where spray applications were made, was also slightly reduced, but the magnitude of the effect was not consistent.

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“…More recently, it has been suggested (Corden, 1965), that the effect of calcium on severity of Fusarium wilt in tomato plants should be rather due to the inhibitory action of calcium on the polygalacturonase activity of the fungus, thus impeding its penetration into the plant. Amendment of sand with extra calcium also caused Fusarium wilt to be less severe in tomato plants ( Table 4) and even nearly absent in pea plants (Fuchs, Homans & de Vries, 1970). Amendment of sand with extra calcium also caused Fusarium wilt to be less severe in tomato plants ( Table 4) and even nearly absent in pea plants (Fuchs, Homans & de Vries, 1970).…”

Section: Uptake Of Pts and 4'-chloro-pts By Plantsmentioning

confidence: 98%

Effects of treatment with phenylthiosemicarbazide and 4‘‐chlorophenylthiosemicarbazide on Fusarium wilt of pea and tomato plants

Fuchs

Homans

Vries

1970

Annals of Applied Biology

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SUMMARY Effects of treatment with phenylthiosemicarbazide (PTS) and its 4′‐chloro‐derivative (4′‐chloro‐PTS) on Fusarium wilt of pea and tomato plants were investigated. Depending on pH and availability of oxygen, PTS and 4′‐chloro‐PTS are converted to their corresponding phenylazothioformamides and phenylazothioformamide‐S‐oxides, which are the actual fungitoxic compounds. PTS and 4′‐chloro‐PTS were shown to inhibit growth of Fusarium oxysporum f. pisi and F. oxysporum f. lycopersici in liquid media as well as on agar plates at concentrations of 50–100 mg/1. Inhibition was greater at pH 7 than at pH 5. When administered to pea and tomato plants, both compounds caused severe phytotoxic effects, especially at temperatures favouring Fusarium wilt, thus almost entirely obscuring any protective activity against the diseases. All compounds were strongly adsorbed to loam, but readily released from sand. Neither in pea nor in tomato plants were PTS and 4′‐chloro‐PTS converted to any fungitoxic substance, not already present in the aqueous solutions administered.

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Systemic Activity of Benomyl against Fusarium Wilt of Pea and Tomato Plants

Cited by 24 publications

References 12 publications

On the specificity of the in vitro and in vivo antifungal activity of benomyl

On the specificity of the in vitro and in vivo antifungal activity of benomyl

The effect of benomyl on the infection of tomatoes by Fusarium oxysporum f.sp. lycopersici and Botrytis cinerea

Effects of treatment with phenylthiosemicarbazide and 4‘‐chlorophenylthiosemicarbazide on Fusarium wilt of pea and tomato plants

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