| 摘要 |
<p>New urea phosphonates, their manufacture and use as active ingredients in pesticides especially insecticides and acaricides is disclosed. The compounds correspond to the formula wherein R1 represents C3-C5-alkyl, R2 represents methyl or ethyl, R3 represents C1-C4-alkyl or C3-C4-alkenyl. and R4 represents optionally substituted phenyl.</p> |
