Greenhouse Experiment on the Control of Panonychus citri through Synergistic Biological and Chemical Approaches
Through 6 treatments of releasing predatory mites at different times after application of chemicals were set up in No.4 greenhouse of Tongnan Lemon Virus-free Seedling Breeding Center,Baizi Town,Tongnan District,Chongqing,to explore the effect of biological and chemical combination on controlling Panonychus citri.The results showed that the release of predator mites 6 days after the application of avermectin had the best control effect on P.citri.The pest reduction rate and control effect could reach to more than 98％.Compared with the treatment of single application of chemical pesticides,the effective period of treatment was lon-ger at about 1.5 months,while the effective period of single application of chemical pesticides treatment can only be last to about 10 days.According to the correlation analysis results of me-teorological factors and the occurrence of P.citri in each treatment,the resistance of P.citri population to high temperature could be improved after application of chemical pesticides.Re-lease of predator mites on the 6th day after application of avermectin,the weather integral index had the greatest effect on the population of P.citri,indicating that appropriate control meas-ures could enhance the inhibition effect of microclimate on the population of P.citri.Regarding the research results provides a more refined scheme for green control of mite in lemon industry.
Panonychus citrichemical controlbiological controlpredatory mitemeteoro-logical factorsweather integral index
万方数据
维普
