黑光灯有一个缺点,不论害虫益虫一律杀死。1976年我们在汉阳县试验黑光灯下保益灭害装置取得一些好效果。 将长、宽各为1尺、高3尺的养虫纱笼,顶部开一圆洞,把黑光灯漏斗插入洞内。笼无底,下密接地面、底边四周用土松埋。笼内中部置一钻有6毫米直径圆孔的铁皮筛板,使分为上下两层,上下两层一边各开一小门,以便清除昆虫尸体(照片1)。隔板6毫米孔径是根据多种 Black light has a disadvantage, regardless of pests and beneficial insects will be killed. In 1976, we got some good results in the Hanyang Experimental Light Bulb Extinguishing Device. The length and width of each 1-foot, 3-foot-high feeding cage, the top open a round hole, the black light funnel into the hole. Cage bottom, close to the ground, buried with soil around the bottom edge. A cages of 6 mm diameter round holes were placed in the middle of the cage to divide the upper and lower levels into two layers, one on each side of the upper and lower levels to clear the insect body (Photo 1). Diaphragm 6 mm aperture is based on a variety of