论文部分内容阅读
在高大平房仓投药一次,维持PH3有效浓度时间6～10天,间隔6～10天,补药1～2天,熏蒸密闭时间达21天以上,减少了药量,减轻了劳动强度,且杀虫率达100%。
In the tall bungalow dosing once to maintain the effective concentration of PH3 time 6 to 10 days, an interval of 6 to 10 days, 1 to 2 days to fill drugs, fumigation airtight time of 21 days or more, reducing the dose, reduce labor intensity, and insecticide Rate of 100%.