The predatory efficiency of adult females of Amblyseius womersleyi. Metaseiulus occidentalis, A. Fallacis, Typholodromus pyri and A. andersoni on Tetranychus kanzawai and Polyphagotarsonemus latus was evaluated. With the eggs of T. kanzawai as prey, the prey consumptions and numbers of eggs laid of A. womersleyi, M. occidentalis and A. fallacis were more than those of T. pyri and A. andersoni. The survival time of A. womersleyi was shorter than that of the other species. With the nymphs of T. kanzawai as prey, the prey consumption of T. pyri was less than that of the other species. The numbers of eggs laid of T. pyri and A. andersoni were fewer than those of A. womersleyi, M. occidentalis and A. fallacis. The survival times of A. womersleryi, M. occidentalis and A. fallacis. The survival times of A. womersleyi and T. pyri were shorter than those of the other species. With the adults of P. latus as prey, the prey consumptions and numbers of eggs laid of A. fallacis and A. womersleyi were more than those of A. andersoni, T. pyri and M. occidentalis. The survival times of A. andersoni and T. pyri were longer than those of the other species. The results of prey consumption and number of eggs laid of phytoseiid mites suggest that A. womersleyi, M. occidentalis and A. fallacis could be more efficient in biological control of T. kanzawai and P. latus than T. pyri and A. andersoni.
(0)
(0)