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铁灭克(15%颗粒剂,美国产)属高效、内吸性农药。我们于近年在杨树苗木上对杨黑点叶蜂Pristiphora conjugata Dahlb.进行了防治试验。试验共设16个小区、5个处理,1个对照。即50%甲胺磷1000倍、铁灭克每公顷1.5千克、3千克、4.5千克和6千克。每个处理0.033公顷(0.5亩),重复3次,周围设保护行。甲胺磷用喷雾机喷洒,铁灭克每份拌干砂5千克,开沟施入,沟深10cm。施药后覆土浇水。
Iron off grams (15% granules, the United States) is a highly efficient, systemic pesticide. In recent years, we have carried out the prevention and cure test on poplar seedlings against Pristiphora conjugata Dahlb. A total of 16 trials plot, 5 treatment, a control. Namely 50% methamidophos 1000 times, iron martensite 1.5 kilograms per hectare, 3 kilograms, 4.5 kilograms and 6 kilograms. Each treatment 0.033 hectares (0.5 acres), repeated three times, surrounded by protection line. Methamidophos spraying machine spray, iron grams per dry mixed sand 5 kg, ditching facilities into the ditch depth 10cm. After the application of soil watering.