01254naa a2200253 a 450000100080000000500110000800800410001910000210006024501420008126000090022352005140023265000100074665000230075665000280077965000230080765000110083065000240084165300120086565300110087765300150088865300130090370000200091677300640093620683122017-04-10       1985    bl uuuu     u00u1 u    #d1 aMORAES, G. J. de  aChemically mediated arrestment of the predaceous mite Phytoseiulus persimilis by extracts of Tetranychus evansi and Tetranychus urticale.  c1985  aSince Tetranychus evansi Baker and Pritchard had been observed to be unfavorable prey for several species of phytoseiid mite predators, a study was conducted to determine the possible existence of an allomone produced by this species against Phytoseiulus persimilis Athias-Henriot. Instead, P. persimilis was strongly arrested by extracts of eggs adult and, especially, webbing plus excreta of T. evansi. Methanol extracts of Tetranychus urticae (Koch) showed a stronger arrestment than extracts of T. evansi.  aAcari  abiological control  aPhytoseiulus persimilis  aTetranychus evansi  aInseto  aTetranychus Urticae  aCapture  aInsect  aPhytoseiid  aPredator1 aMcMURTRY, J. A.  tExperimental and Applied Acarologygv. 1, p. 127-138, 1985.