Evaluation on the potential of Habrobracon hebetor to control Chilo suppressalis
Chilo suppressalis is a common pest that causes significant damage to rice crops in China.Habrobracon hebetor is a parasitic natural enemy of various lepidopteran larvae.In order to evaluate the potential of H.hebetor as a control agent for C.suppressalis,a series of experiments were conducted to assess the functional response of this parasitoid to C.suppressalis,and its development,survival,longevity,reproduction on the host,as well as the number of paralyzed hosts.The results showed that the H.hebetor exhibited a paralytic lethal effect on C.suppressalis larvae at temparatures ranging from 20～34 ℃.Furthermore,the parasitoid was capable for completing its life cycle on the host.The capacity of H.hebetor to paralyze the hosts was inhibited at 34 ℃,as evidenced by a decline in the instantaneous attack rate and the theoretical daily maximum paralysis value,in addition to an increase in the treatment time.The pre-adult survival rate,fecundity,and the number of paralyzed hosts at 26 ℃ were the highest,with values of 72.22％,205.54,and 184.33,respectively.The findings of this research have significant implications for the control of C.suppressalis with H.hebetor.
Chilo suppressalisHabrobracon hebetortemperaturefunctional responselife history
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