Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Parasitic organism or component thereof or substance...
Patent
1982-09-16
1984-12-18
Meyers, Albert T.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Parasitic organism or component thereof or substance...
424300, A01N 4738, A01N 4728, A01N 4722, A01N 4710
Patent
active
044890869
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a soil fungicidal agent for agriculture and horticulture characterized by comprising as effective components 4-methylsulfonyloxyphenyl-N-methylthiolcarbamate and 1-isopropylcarbamoyl-3-(3,5-dichlorophenyl) hydantion. ##STR2##
BACKGROUND ART
4-methylsulfonyloxyphenyl-N-methylthiolcarbamate (hereinafter abbreviated to "compound A"), one of the effective components of the present invention is a known compound described in Japanese patent application Kokai (Laid-Open) No. 47527/78. This compound has a broad antimicrobial spectrum and is effective in controlling various soil borne plant diseases on crops and turfs, caused by Fusarium sp., Pythium sp., Rhizopous sp., Phytophthora sp., Trichoderma sp., Rhizoctonia sp., Corticium sp. and the like. However, a sufficient fungicidal effect cannot always be obtained.
1-isopropylcarbamoyl-3-(3,5-dichlorophenyl) hydantion (hereinafter abbreviated to "compound B") is a known compound described in Japanese patent application Kokai (Laid-Open) No. 8097/72, and is developing as a fungicide for controlling gray mold, stem rot and the like. Though compound B is effective against the soil borne plant diseases, caused by Trichoderma sp., Rhizopus sp., Rhizoctonia sp., Fusarium sp., Helmintsporium sp., ; Puccinia sp., sufficient controlling effect cannot be obtained when compound B is used at such a low concentration as to be nonphytotoxic to crops and turfs.
DISCLOSURE OF THE INVENTION
After the inventors have made intensive investigations to develop a fungicide for effectively controlling various soil borne plant diseases such as damping-off of rice plant seedling and cucumber seedling, and brown patch, Pythium patch and rust of turfs and the like, the inventors have found that a composition comprising effective components of compound A and compound B (hereinafter abbreviated to "the present composition") shows a synergistic effect in controlling soil borne plant diseases, as compared to the respective components and moreover exhibits an excellent controlling effect without any phytotoxicity on crops and turfs. The present invention has been completed on the basis of this finding.
Namely, the present composition shows a high controlling effect which is unexpected from the effect of the respective components against the soil borne plant diseases, caused by damping-off of rice plant and cucumber seedlings, brown patch, Pythium patch and rust of turfs at such a low concentration as to give no phytotoxicity on rice plants, vegetables and turfs.
BEST MODE FOR CARRYING OUT THE INVENTION
The weight ratio of compound A to compound B is generally in the range of 8:1 to 1:8, preferably 1:1 to 5:1.
The present composition may be used as a fungicidal composition for agriculture and horticulture as it is or in the form of a mixture with an agricultural adjuvant which improves the effect or which stabilizes the composition depending on the purpose of the use. The composition may be used in the form of, for example, dusts, microgranules, granules, wettable powders, flowable suspension concentrates, ultra low volume compositions or emulsifiable concentrates prepared by a method generally employed in the production of pesticides.
In the practical application, these various types of formulation may be used either as they are or after dilution with water into a suitable concentration.
As agricultural adjuvants herein used, there may be mentioned a carrier (diluent) as well as spreaders, emulsifiers, wetting agents, dispersing agents, binders, disintegrators, etc.
As liquid carriers, there may be mentioned petroleum fractions such as kerosene and light oil, aromatic hydrocarbons such as toluene and xylene, alcohols such as methanol, butanol and glycol, ketones such as acetone, amides such as dimethylformamide, sulfoxides such as dimethylsulfoxide, methylnaphthalene, cyclohexane, animal and vegetagle oils, fatty acids, fatty acid esters, etc.
As soil carriers, there may be mentioned clay, kaolin, talc, diatomaceous earth, silica, calcium c
REFERENCES:
patent: 3755350 (1973-08-01), Sauli
patent: 3823240 (1974-07-01), Sauli
patent: 4126696 (1978-11-01), Nakagawa et al.
patent: 4181519 (1980-01-01), Pilgram et al.
patent: 4211785 (1980-07-01), Nakagawa et al.
S. R. Colby, Weeds, Calculating Synergistic and Anagonistic Responses of Herbicide Combinations, pp. 20-22.
Matsumoto Shozo
Nakagawa Taizo
Ohmori Kaoru
Kilcoyne John M.
Meyers Albert T.
Nippon Kayaku Kabushiki Kaisha
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