ControlEfficiency of Five Pesticides on CeroplastesrubensDamaging to Ilex chinensis

Collection of 1-instar Ceroplastesrubensnymph on Ilex chinensis was carried out in June 2019 for experiment in lab by branches immerged in 5 pesticides with different concentration and field experiment were conducted in May 2019 in Anji, Zhejiang province by injection of the same pesticides in trunk of I.chinensis and concentration for comparison.The pesticides were as follows: 2% Emamectinmicroemulsion, 3% Thiaclopridmicroemulsion, 2% MilbemycinEC, 3% Imidaclopridmicroemulsionand 2% AvermectinEC.The results showed that 1.0 mg/L of 2% Emamectinmicroemulsionhad the best efficiency toC.rubens, with 91.98% corrected mortality in lab within 72 hours, and 96.51% of control efficiency in the field by injection of 50mL on the 45th day.