Efficacy evaluation of microencapsulated artificial diet for rearing Rhynocoris fuscipes(Fabricius)(Hemiptera:Reduviidae)
For artificial mass production of Rhynocoris fuscipes,we developed a microencapsulated artificial diet with ingredients of hemolymph from natural prey and juice of tobacco leaves.We evaluated the properties of the microencapsulated artificial diet and its efficacy for rearing R.fuscipes,with R.fuscipes reared with mealworms as the control.The average yield rate of the microencapsulated artificial diet was 73.17％;the average moisture content was 92.35％,and the average comprehensive sensory evaluation score was 86.8.The developmental duration of R.fuscipes nymphs fed with microcapsules was significantly longer than that of the control,and the survival rate and body weight of R.fuscipes nymphs were significantly lower than those of the control.The difference in the nymphal body weight between the treatment and control group gradually decreased with increasing age.The harvest rate of R.fuscipes adults in the treatment group was 16.7％,while it was 68.9％in the control group.In terms of fecundity parameters,there were no significant differences in egg production and egg hatching rate between the treatment and the control,except for the pre-oviposition period that was significantly longer in the treatment than in the control.When the density of prey Spodoptera litura larvae was eight individuals per dish,the predatory capacity was significantly lower than that of the control,but the difference decreased when the prey density was lower.In conclusion,the microencapsulated artificial diet can basically maintain the growth and development of R.fuscipes and replace mealworms as food for R.fuscipes to a certain extent.
万方数据
维普
