| 摘要 |
Guanidinophosphoric thiolesters are a narrow group of potent compounds for controlling pests and have one of the tautomeric formulae I <IMAGE> in which R1 denotes C3-C5-alkyl and R2 denotes methyl or ethyl, while R3 and R4 independently of one another represent hydrogen, C1-C8-alkyl or one of the substituents -CN, -CONH2 or C2-C8-acyl. These preparations can be used in the form of compositions against insects, Acarina and, in particular, against nematodes. |
