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为了评价马拉硫磷超低容量喷洒对尖音库蚊和 C.restuans 自然种群的作用,在库蚊侵扰严重的伊利诺斯州的迪凯特市进行了该试验。试验区地势平坦,分为处理区(1、 2) 和对照区(1a、2a),处理区1和对照区1a 面积各约400米×900米;处理区2和对照区2a 面积约1,000米×600米,彼此间距为1,500米～3,000米,以防止药物飘移干扰。试验在1977年夏季3个傍晚最适合于施用药物的时间进行。用安装在卡车上的LECO HD~(TM)型超低容量喷雾器,以130毫升/分流量喷洒91%马拉硫磷,卡车按预定路线,以每小时8公里速度行驶。2个处理区的处理时间分别为40分钟和55分钟。在处理区和对照区各选对蚊产卵最有吸
The test was conducted in Decatur, Illinois, in order to evaluate the effect of ultra-low-volume malathion spraying on the natural populations of Culex pipiens and C.restuans. The test area was flat and divided into treatment area (1, 2) and control area (1a, 2a). The area of treatment area 1 and control area 1a were about 400 m × 900 m. The area of treatment area 2 and control area 2a were about 1,000 m × 600 meters, spacing of 1,500 meters to 3,000 meters, in order to prevent drug drift interference. The trial was most suitable for the administration of the drug on three evening droughts in summer 1977. Using a truck-mounted LECO HD ™ Ultra Low Volume Spray, spray 91% malathion at a rate of 130 ml / min. The truck travels at a scheduled speed of 8 km / h. The processing time for the two treatment zones is 40 minutes and 55 minutes respectively. In the treatment area and the control area of each election mosquito eggs most attracted