Detail of "3574-96-7"

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Protection of Shiitake fungus from mycoparasites by fungicidal agents

Protection of Shiitake fungus from mycoparasites by fungicidal agents.In this experiment, several chemicals are used like 10605-21-7 4. Selective antifungal activity of 5-substituted methyl 2-benzimidazole carbamates, 2-aryl- and 2-alkyl-substituted benzimidazole derivatives upon the mycelium of Shiitake fungus and its mycoparasites. Tabata, Takeo; Kondo, Tamio (Fac. Agric, Kyushu Univ., Fukuoka, Japan). Mokuzai Gakkaishi, 23(10), 504-8 (Japanese) 1977. CODEN: MKZGA7. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) Derivs. of Me 2-benzimidazolecarbamate I (R = H, Me, Cl, and NO2) were prepd. and their selective antifungal activity against Shiitake fungus and its mycoparasites was examd.In this experiment, several chemicals are used like 10605-21-7 The substituent effect was in the order given, thus I(R = H) [10605-21-7] had the highest activity and I (R = NO2) [40483-97-4] was without effect. The fungicidal activity of the benzimidazole derivs., such as 2-phenylbenzoxazole (II) [833-50-1] and 2-phenylbenzthiazole (III) [883-93-2] were also detd. For the benzimidazole deriv., selective fungicidal activity was high for 2-(2-furyl)benzimidazole [3878-19-1] and 2-(o-chlorophenyl)benzimidazole [3574-96-7] and disappeared in II and III. In position ortho, Me, CO2H, NH2 and OH decreased the fungicidal activity of phenylbenzimidazole on the mycoparasites as compared with the chloro compd. The Shiitake fungus was Lentinus edodes and the mycoparasites tested were Trichoderma, T. harzinanum, Hypocrea nigricans, and H. schweinitzii. ..

Protection of Shiitake-fungus from mycoparasite by the fungicidal agents

Protection of Shiitake-fungus from mycoparasite by the fungicidal agents. 5. Characteristics of various selective fungicides against Shiitake-fungus and its mycoparasites. Tabata, Takeo; Kondo, Tamio (Fac. Agric., Kyushu Univ., Fukuoka, Japan). Mokuzai Gakkaishi, 24(7), 502-6 (Japanese) 1978. CODEN: MKZGA7. ISSN: 0021-4795. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) ED50 values representing the toxicity, heat-stability, and UV-irradn. stability of benomyl [17804-35-2], TBZ (I) [148-79-8], MBC [10605-21-7], fuberidazole [3878-19-1], 2-phenylbenzimidazole [716-79-0], 2-(o-chlorophenyl)benzimidizole [3574-96-7], and S-octylisothiouronium chloride [3544-29-4] to the tested fungi, as well as the antibacterial activity of such fungicides upon Pseudomonas fluorescens, a pathogenic bacteria of cultivated Shiitake-mushroom, were studied. The effects of these fungicides for the control of mycoparasites on the Shiitake bed-log were examd. too. Results of the selectivity ratio calcd. from the ED50 of fungicides showed the effectiveness to be MBC > benomyl > fuberidazole > 2-phenylbenzimidazole > 2-(o-chlorophenyl)-benzimidazole > S-octylisothiouronium chloride. Only S-octylisothiouronium chloride exhibited appreciable antibacterial activity. For benomyl and S-octylisothiouronium chloride, heat treatment decreased their stability whereas the other fungicides were heat stable. 2-Phenylbenzimidazole and 2-(o-chlorophenyl)-benzimidazole were not effected by the UV-irradn. Although the other fungicides were. Spraying suspensions of benomyl, MBC, TBZ, fuberidazole, 2-phenylbenzimidazole or 2-(o-chlorophenyl)-benzimidazole on a log inoculated with Shiitake-fungus showed that these fungicides could be successfully utilized without the invasion of the mycoparasite. The effectiveness in vitro and in vivo of all examd. fungicides, except S-octylisothiouronium chloride, were approx. similar to each other. S-octylisothiouronium chloride in vivo could not protect the invasion of the mycoparasite in high concn. of 10,000 ppm.