Abstract: A new tactics for management of rice grasshoppers, mainly with Nosema locustae, integrated with insect growth regulator and chemical pesticide, was developed in Beijing. The results of field experiments showed that when spray of N.locustae at dosage of 1.5×10¹⁰ spore/hm² was used, the population of rice grasshopper, Oxya chinensis reduced 65.4% in 30 d. When 5% Cascade was integrated with N.locustae as stripe sprays (every 3 rows∶1 row), the locust population reduced 73.9% in 7 d and was still effective (61.6%) 45 d after application.