“靠着‘以虫治虫’技术,我这片韭菜没打一滴农药,口感特别好。”日前,在天津市宝坻区大口屯镇设施农业园区的韭菜地里,种植户张佩良高兴地对笔者说。张佩良告诉笔者,韭蛆是一种生活在地下的顽固害虫,专门咬食韭菜根。一旦根被咬烂,韭菜便不能成活。去年秋天,南开大学生命科学学院教授阮维斌向张佩良介绍了一种“以虫治虫”的“绿色”韭菜种植技术,并向他提供了昆虫病原线虫。在阮维斌的指导下,张佩良在韭菜地每隔20厘米处的 “Relying on pest control technology, I did not have a drop of pesticide on this piece of Chinese chives and I feel very good.” Recently, the growers Zhang Peiliang happily responded to the leeks in the facility agricultural park in Da Kou Tun Town, Baodi District, Tianjin I said. Zhang Peiliang told the author, leek maggots is a stubborn pest of life in the ground, specifically eating leek root. Once the root is bitten, leeks can not survive. Last autumn, Nguyen Van Bin, a professor of the College of Life Sciences at Nankai University, introduced to Zhang Peiliang a “green” leek cultivation technique for pest control and provided him with entomopathogenic nematodes. Under the guidance of Ruan Weibin, Zhang Peiliang leek in every 20 cm