Control of Frankliniella occidentalis on Gerbera jamesoni by Orius similis

doi:10.16409/j.cnki.2095-039x.2020.06.027

Abstract

Abstract: To determine the control efficacy of a predator Orius similis on Frankliniella occidentalis, O. similis was released at 2 per square meter to Gerbera jamesoni flowerbeds. And then we investigated the population decline rate of F. occidentalis and the corrected control efficacy of O. similis on F. occidentalis. The results showed that, in the days right after releasing O. similis, the control efficacy on F. occidentalis was not evident; however, with extension of time delay after the release, the control efficacy increased significantly and was higher than that achieved by spraying chemical pesticides. The control efficacy reached as high as 90.25% at 21 days after the release while chemical control efficacy was reduced to -40.93%. These data indicate that O. similis has higher control potential on F. occidentalis compared with chemical control.

Key words: biological control, Orius similis, Frankliniella occidentalis, Gerbera jamesoni

CLC Number:

S476.2

LIU Mei, ZHANG Changrong, SHANG Xiaoli, GUO Jun, ZENG Guang, SHI Lejuan. Control of Frankliniella occidentalis on Gerbera jamesoni by Orius similis[J]. Chinese Journal of Biological Control, 2020, 36(6): 992-996.

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