Assessment of the rearing efficacy and predation ability of sesame-reared Nesidiocoris tenuis
The mirid bug Nesidiocoris tenuis is an omnivorous predator.In this study,through the comparison of the biological characteristics of sesame-reared population and whitefly prey-plus population,we evaluated the rearing efficacy using sesame and the predatory capabilities of N.tenuis on natural preys.The results showed that the development time of N.tenuis nymphs was prolonged and the hind tibiae length of adults was smaller from sesame-reared population.However,there were no significant differences in female proportion,survival rate,fecundity and the predation abilities of N.tenuis against Bemisia tabaci and Myzus persicae between the two populations.After successive rearing for 10 generations,the innate rate of increase of N.tenuis reared on sesame was 0.2152,close to that of the prey-plus population,which was 0.2398.These findings indicate that sesame can be utilized as the only food nutrition for the artificial rearing of N.tenuis,and this new rearing method provides a reference for the mass production of N.tenuis and the establishment of a field rearing model based on sesame planting.
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