Occurrence dynamic of Diaphorina citri adults and cadaver in Guangzhou lemon orchards and their relationship with temperature and humidity
Diaphorina citri is one of the most important pests in citrus tender shoot stage,and it is also the natural vector of citrus Huanglongbing.Entomopathogenic fungi are a type of pathogenic microorganism that can infect insects and reproduce in their bodies,ultimately leading to insect death.They are high-quality resources for green pest prevention and control.To clarify the occurrence dynamic of D.citri adults and cadaver in lemon orchards in Guangzhou and accurately guide the green control of the pest,this study used the Five-point sampling survey method to monitor the occurrence dynamics of D.citri adults and cadaver in lemon orchards in Guangzhou for one year in a row.The results showed that the occurrence of D.citri adults and cadaver in lemon orchards gradually decreased with the decrease in monthly average temperature.The peak period of D.citri adults occurrence was from June to August,and the peak period of cadaver occurrence was from August to October;The population density of D.citri adults and cadaver was significantly positively correlated with temperature.The monitoring results not only provide a theoretical foundation for the prediction of D.citri adults,but also help to provide a basis for scientific management and accurate green prevention and control of D.citri.
NETL
NSTL
万方数据
