| 摘要 |
PURPOSE:To prevent the generation of suspended mist of a termite-controlling liquid and to ensure the safety of operator even in the case of using an organophosphorus chemical, by compounding the controlling liquid with a highly water-absorbing resin in the spraying of the liquid. CONSTITUTION:An aqueous dispersion of a termite-controlling agent containing a termite-controlling agent such as chloropyrifos and a highly water-absorbing resin such as acrylic acid-vinyl alcohol copolymer is sprayed preferably with a power sprayer. The content of the highly water-absorbing resin in the liquid is usually <=1wt%. The agent can be applied in thickened state within a short time after mixing the termite-controlling agent with the highly water-absorbing resin. The components can be mixed with each other easily in site in high workability. The coagulum is soft, even if any, and the liquid can be applied without causing troubles such as nozzle clogging, etc. The part treated with said liquid is resistant to become moldy. The present process is suitable for the termite-controlling method with an organophosphorus chemical having strong acute toxicity and supposed to be used in increased amount in the future.
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