| 摘要 |
Oil-in-water pyrethroid emulsions were prepd., contg. I(X = H, Cl, Br, F; Y = II, III; R1 = Me, TV; R2 = Me; R3 = Cl, Br, F, t-butyl; R4 = isopropyl, cyclopropyl; R5 = Cl, Br, F, Me), as well as gum arabic or polyvinyl alc. and a thickening agent. Thus, an emulsion is given, contg. 10 % polyvinyl alc. 40 g, (+)-2-cyano-3-phenoxybenzyl(+)-2-(4-chlorophenyl)isovalerorate 10 g, and Agrisol FL-100F 50 g. When stored at 40≦̸C for 6 months, the emulsion was stable, and showed only 0.5% degrdn. of the active ingredient.
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