榆跳象是榆树的重要食叶害虫之一，甘肃尚未见记载，近年来在张掖地区发生，虫情日趋严重。该虫１年发生１代，以成虫越夏和越冬，成虫一般自叶背取食叶肉，幼虫潜叶为害。天敌有榆跳象羽角姬小蜂（Ｓｙｍｐｉｅｓｉｓｓｐ．）等。成虫发生期根施３％呋喃丹或用２．５％溴氰菊酯２０００倍液喷雾树冠，效果均可达９０％左右。 Elm jumping elephant is one of the important leaf-eating pests of Elm, Gansu has not yet been documented, occurred in Zhangye Prefecture in recent years, the growing insestation. The pest occurs 1 year to 1 year, with the overwintering adult and overwintering, the adults generally feeding the leaf from the leaf blade, the larvae of the leaves damage. There are natural enemies like Yu Ji jumping hornet Ji Bee (Sympiesissp.) And so on. The incidence of adult 3% carbofuran or 2.5% deltamethrin spray 2000 times the crown, the effect can reach about 90%.