| abstract |
The present invention relates to synergistic arthropodicidal composition of several pyrethroidal active ingredients causing no damage to warm-blooded organisms comprising pyrethroides and piperonyl butoxide as active ingredient which comprises as pyrethroidal active ingredient 0.1-20 % by weight of 1StransR-alpha-cyano-3-phenoxy-benzyl-3-/2,2-dichlorvinyl/-2,2-dimethylcyclopropane-cyrboxylate of the Formula I 0.05-10 % by weight of cis-trans-tetramethrin /3,4,5,6-tetrahydrophtalimido-methyl/1RS/-cis-trans-chrysantemate/ or trans-tetramethrin of the Formula II and optionally a further pyrethroide, 0.1-40 % by weight of piperonyl butoxide of the Formula III |