草原上的吸血昆虫虻、蚊、蚋,对牲畜的危害极大,严重影响了牲畜的抓膘、保膘、安全越冬、保胎、仔畜的成活以及毛、乳、肉的数量和质量等。有的蚊、虻亦是人、畜重要传染病的媒介或寄生虫病的中间宿主,威胁着人畜的安全与健康。为了促进边疆牧区生产的发展,确保人畜的健康,我们开展了草原飞机灭虫工作,取得了初步效果。 The blood-sucking insects, mosquitoes and jackals on the prairie are extremely damaging to the livestock and have a serious impact on the grasping, protection, safety and winter survival of the animals, the protection of the fetus, the survival of the young and the quantity and quality of wool, milk and meat. . Some mosquitoes and chickens are also intermediaries for people, livestock or other infectious diseases, and threaten the safety and health of people and animals. In order to promote the development of production in the border areas and pastoral areas and ensure the health of people and livestock, we conducted grass-pest control work and achieved initial results.