| 摘要 |
<p>A carrier material for mosquito-larvae-killing pesticides, comprising granules with a given size and geometrical form, mechanical strength, which contain pores, and basically build from a natural silicate mineral has been prepared from a porous and burnt clay material. Geometrical form of the granules is favorably ball form, size of the supporting material granules is 0.1-20 mm, preferably 3-6 mm in its diameter. A procedure for the preparation of the carrier material is also given in which the pesticide material is bound on the surface or into the pores of the carrier material. The granules float on the water surface until it has its effects, then within a few hours, preferably between 1-16 hours its pores are filled with water then sinks.</p> |
