The present invention even if unused for long periods of time, and provides a termite-controlling agent for liquid chemical spray apparatus that shall be solved the occurrence of clogging or mold, rust, etc. in the pipe. A a chemical agent supply pipe 1 for termite control formed by communicating with the ventilation opening 4 is laid along the rising wall surface of the fabric foundation P and Yukagaibu in under the floor of the building, the chemical liquid from the ventilation opening 4 agent pump device 6 for introducing the liquid chemical agent to the supply pipe 1, a pump unit 6 liquid chemical agent supply pipe so as to spray a fine mist towards a chemical agent from the rising side surface of the fabric foundation P on the floor side by one of and a spray nozzle 2 and 3 equipped in at least some places, after the end of the spray of liquid chemical agents, remaining on the inside of the pipe 1 by air compressed air from the ventilation opening 4 in the chemical agent supply pipe 1 the pump device 6 of ventilation port 4 so as to discharge the liquid chemical agent from the spray nozzle 2 and 3 have a structure to switch to the compressor 7. .BACKGROUND【課題】長期間使用しないことがあっても、配管内の詰まりやカビ・錆び等の発生を解消できるものとしたシロアリ防除用薬液剤噴霧装置を提供する。【解決手段】建築物の床下における布基礎Pの立上がり部壁面に沿って敷設され且つ床外部の換気口4に連通して成るシロアリ防除用の薬液剤供給用配管1と、換気口4から薬液剤供給用配管1内に薬液剤を導入するポンプ装置6と、ポンプ装置6によって薬液剤を布基礎Pの立上がり部側面から床下側に向けて微細霧状に噴霧させるよう薬液剤供給用配管1の少なくとも一部箇所に備えた噴霧ノズル2,3とを有し、薬液剤の噴霧終了後に、換気口4から薬液剤供給用配管1内に圧縮空気を送気して配管1内に残留した薬液剤を噴霧ノズル2,3から排出させるよう換気口4のポンプ装置6をコンプレッサー7に切替える構成とする。【選択図】図1
