Distribution of the Mite, Tetranychus kanzawai KISHIDA, Resistant to Kelthane and Estox in the Tea Field of Kyoto Prefecture
1969 Volume 1969 Issue 31 Pages 1-4
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1969 Volume 1969 Issue 31 Pages 1-4
1) It was reported by OSAKABE (1968) from his observation in 1965-'66 that the resistant mites, Tetranychus kanzawai KISHI-DA, to Phenkapton and Estox were widely distributed in the tea fields of Tokai-Kinki and north Kyushu districts, but the resistant mites to Kelthane were only discovered in the tea fields of Kyoto prefecture.
2) In this paper, the distribution of resistant mites to Kelthane (1, 1, Bis-(p-chlorophenyl) 2, 2, 2-trichloroethanol) and Estox (O, O-Dimethyl S-(I-methyl-2-ethylsulfinyl)-ethyl phosphorothioate) in the tea fields of Kyoto prefecture was investigated in 1967-'68.
3) As a result of this observation, the resistant mites to Kelthane were discovered locally and limited to Yamashiro town in the southeast in Kyoto prefecture.
4) The resistant mites to Estox were widely distributed in the tea fields of Yamashiro district, but they were not discovered in the tea fields of Tanba-Tango districts.
