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US 4,226,883 AGranted
Carbamate derivatives and method for manufacture thereof
OwnerIzuru Yamamoto, Yohji Takahashi +1inventors
InventorsIzuru Yamamoto, Yohji Takahashi, Nobuo Kyomura
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Abstract
Novel carbamate derivatives and a method for the manufacture thereof are disclosed. The carbamate derivatives or insecticidal compositions containing such carbamate derivatives as the active component exhibit an outstanding insecticidal effect on the organophosphorus or carbamate resistant green rice leafhoppers (Nephotettix cincticeps Uhler).
Claims13
An insecticidal composition containing as the effective agent a synergistic mixture of:
- A. a N-n-propylcarbamate selected from the group consisting of 3-methylphenyl N-n-propylcarbamate;
- 3,4-dimethylphenyl N-n-propylcarbamate and 3,5-dimethylphenyl N-n-propylcarbamate;
- and
- B. a N-methylcarbamate selected from the group consisting of 3-methylphenyl N-methylcarbamate;
- 3,4-dimethylphenyl N-methylcarbamate;
- 3,5-dimethylphenyl N-methylcarbamate;
- 2-i-propylphenyl N-methylcarbamate;
- 2-sec-butylphenyl N-methylcarbamate;
- 3-t-butylphenyl N-methylcarbamate;
- 3-methyl-5-i-propylphenyl N-methylcarbamate;
- 2-chlorophenyl N-methylcarbamate;
- 2-i-propoxyphenyl N-methylcarbamate and naphthyl N-methylcarbamate;
- the weight ratio of A to B being within the range of 0.5:1 to 2:1.
10 more elements
Dependencies are inferred from the claim text.