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Objective@#To explore the effects of different concentrations of glucose solution on the survival of Aedes albopictus and Culex pipiens pallens larvae, the attraction to mosquitoes and egg-laying behaviors, so as to provide the reference for developing mosquito control technology based on sugar bait.@*Methods@#White porcelain bowls were filled with 100 mL of 3%, 5%, 8%, 10% and 15% glucose solutions. Ten of fourth instar larvae of Aedes albopictus or Culex pipiens pallens were added to each bowl, and the survival of larvae was recorded after 2, 4, 6, 24, 48 and 72 hours. Egg-laying cups containing 5%, 8% and 15% glucose solution were put in mosquito cages containing fully blooded female mosquitoes of Aedes albopictus and Culex pipiens pallens (50 mosquitoes each), and the total number of eggs laid in 72 hours was observed. The analogous site room was filled with fully blooded and starved female mosquitoes of Aedes albopictus and Culex pipiens pallens (100 mosquitoes each), and simple mosquito control buckets containing 5% and 8% glucose solution and black sticky insect plates. The number of mosquitoes and eggs was observed after 6 days. All the above experiments were repeated 3 times using dechlorinated water as the control.@*Results@#The 72 hour corrected mortality rates of Aedes albopictus and Culex pipiens pallens larvae gradually increased with the increase of glucose concentration. The glucose solution with 5% and higher concentrations was not suitable for mosquito larvae to survive. The attraction of egg-laying behaviors to Aedes albopictus and Culex pipiens pallens gradually decreased with the increase of glucose concentration. The effects were similar between 5% and 8% glucose solution, with the averages of 686.67 and 682.33 eggs for Aedes albopictus, and 3.00 and 2.33 egg rafts for Culex pipiens pallens. In analogous site room, there were 93.33, 105.00 and 130.33 adult mosquitoes captured on average in the control group, 5% and 8% glucose solution groups, respectively, with 8% glucose solution group more attractive to adult mosquitoes than the control group (F=3.283, P=0.030); there were 70.33, 55.33 and 63.00 Aedes albopictus eggs (eggs counts+larvae counts) on average, respectively, with statistically significant differences among the three groups (H=6.761, P=0.034).@*Conclusion@#Glucose solution with concentration of 5% or higher can effectively inhibit the survival of Aedes albopictus and Culex pipiens pallens larvae, and attractive to adult mosquitoes and egg-laying behavoirs.
RESUMEN
@#Began from the investigation of the hosts and vectors of plague, epidemic haemorrhagic fever and leptospirosis, mosquitoes, and flies, Zhejiang Province gradually implemented the ecological surveillance of mosquitoes, flies, cockroaches, rats, ticks and bed bugs, the drug resistance surveillance of mosquitoes, flies and cockroaches, the pathogenic surveillance of rats, mosquitoes and ticks. We carried out the comprehensive surveillance research into rats, mosquitoes, ticks and so on, and should further strengthen the analysis and utilization of surveillance data through the development of surveillance on ecological, drug-resistant, pathogenic and epidemic characteristics. We thoroughly implemented the concept of vector sustainable control, actively carried out the analysis and risk warning research of surveillance, to escort vector-borne diseases prevention and control, National Health City construction, and public health protection for big events; explored the technology of vector surveillance in rural areas, to serve for vector sustainable control for the rural revitalization strategy and beautiful countryside construction. This paper reviewed the progress of vector surveillance and related research in Zhejiang Province since 1930s, summarized the experience, and put forward to strengthen the technical areas of weakness and personnel training, to promote scientific and technological innovation, and to accelerate the construction of a information integrated system for vector surveillance of the new era in Zhejiang Province.