The spore suspension of M.anisopliae and A. chrysogenum was employed in control test in the field against first instar larvae of Saperda populnea,and the mortality was 95.56% and 48.72%.

• 利用金龟子绿僵菌和枝顶孢霉菌液田间防治青杨天牛幼虫；死亡率分别为95.；56%25及48