在最近一些实验的基础上,美帝森林服务部的科学工作者相信,在激光全息照相中他们发现了一种很有价值的研究工具,据此可望不再继续依赖持久性的化学药品(如滴滴涕)来控制森林虫害。几年前,森林服务部的研究者发现,非持久性的杀虫剂“Zectran”(一种氨基甲酸脂 Building on some recent experiments, scientists at Middlet Forest Services believe they have found a valuable research tool in laser holography, on the expectation that they will no longer be dependent on persistent chemicals Such as DDT) to control forest pests. A few years ago, researchers from Forest Services found that non-permanent insecticides “Zectran” (a carbamate