Observation on Biological Characteristics and Control Methods of Duplachionaspis Stanotophri

From March, 2017 to June, 2018, the biological characteristics and chemical control experiments of duplachionaspis stanotophri are carried out in Lin ’an, Zhejiang. The results shows that April to early November is the active period of newly hatched nymph, which is the key period of chemical control. Using 2 times of 5% imidacloprid EC and 40% acephate EC for injection, the control effect is the best, with 95.4% and 95.6% respectively. Using 800 times of 2.5% cyhalothrin EC and 40% chlorpyrifos EC, the control effects of bamboo crown spray are 90% and 91.6% respectively. Both injection and spraying methods have good control effects, and the number of physarum arundinacea on duplachionaspis stanotophri decreased obviously after application.