以2。5%增效敌敌畏喷洒，可使蝇密度维持在较低水平。

The fly population density could be maintained low condition by spraying2.5% synergist ic ddvp.

youdao

以2.5%增效敌敌畏喷洒，可使蝇密度维持在较低水平。

The fly population density could be maintained low condition by spraying 2. 5% synergistic DDVP.

youdao

以2.5%增效敌敌畏喷洒，可使蝇密度维持在较低水平。

The fly population density could be maintained low condition by spraying 2. 5% synergistic DDVP.

youdao