| 摘要 |
<p>2,2-Dimethyl-3-vinyl-cyclopropanecarboxylic acid aster of the formula wherein R1 represents fluorine, chlorine or bromine, R2 represents fluorine, chlorine, bromine or methyl, and one of the symbols X and Y represents nitrogen and the other represents oxygen, processes for their production and their use in pest control.</p> |
