| 摘要 |
<p>2,2-Dimethyl-3-(2,4-dichlorophenyl)-2-oxo-1-oxaspiro[4,5]dec-3-en-4-yl butanoate is used to control acarids in hops, kiwi fruits, berries, nuts, coffee, tropical fruits, spice plants and conifers. 2,2-Dimethyl-3-(2,4-dichlorophenyl)-2-oxo-1-oxaspiro[4,5]dec-3-en-4-yl butanoate of formula (I) is used to control acarids in hops, kiwi fruits, berries, nuts, coffee, tropical fruits, spice plants and conifers. [Image] ACTIVITY : Acaricide. A composition containing 0.0048% (I) was applied at 2000 l/hectare to hops at the start of infestation with Tetranychus urticae. The effectiveness of treatment after 4, 14 and 21 days was 90, 94 and 93%, respectively. For hops treated, at the peak of infestation, with 2000 l/hectare of a composition containing 0.005% cis-cyhalothin, effectiveness was 59% after 4 days but zero after 18 days. MECHANISM OF ACTION : None given.</p> |
