Abstract
The percentage of grasshoppers infected by Paranosema locustae showed peaks in the first, third and eighth year since the pathogen was applied in 1998 in the Qinghai-Tibet rangelands, demonstrating that it remained present in grasshopper populations for more than 9 years after application.
Acknowledgements
This research was funded by the National Natural Science Foundation of China and the Special Fund for Agro-scientific Research in the Public Interest (200903021).