| 摘要 |
<p>A method for controlling the development of a parasite in an animal's environment, comprising: contacting the environment with a powder free of a substance that is neurotoxic to the parasite, the powder comprising at least 60% by weight of alkali metal bicarbonate particles and at least 1% by weight of silica, wherein the bicarbonate particles have a particle size distribution such that at least 75% of the particles have a diameter of less than 100μm, wherein the parasite is an acarid, and wherein the bicarbonate particles and the silica combined in the powder together comprise a parasiticidally effective synergistic combination.</p> |
