Abstract: Through the effect test of the biocide which specialize in eliminating “Locusta migratoria manilensis Meyen” in Yellow-River beach area Zhong Mu County Henan Province between 2003 and 2005,the result clearly indicates:20% of Metarhizium ULV eliminating locusts is particularly effective of eliminating “Locusta migratoria manilensis Meyen”. 15 days after using the biocide with capacity of 400~500ml/hm2, average rectified eliminate rate is even higher than 98%, compared with the biocides 0.4% of Regent ULV and 75% of Malathin ULV with capacity of 1500ml/hm2, the result of effects are the same; moreover, the former has very little negative effect on “Locusta migratoria manilensis Meyen”’s natural enemies such as spiders, beetles & ants; further more, it has no negative effect on environmental factor as well, just according with environmental protection and the demand of bio-diversification of the locust perching area. H’s no doubt it has bright future of widely extending popularity.