PROBLEM TO BE SOLVED: To construct a stationary control facility that can be easily operated with peace of mind by farmers who cultivate the control equipment, and to ensure that pests that adhere to plant cultivation are not affected by chemicals sprayed in the plant cultivation house without affecting workers An inexpensive control system that can be disinfected is provided. SOLUTION: A means for spraying a chemical solution containing a pest-preventing agent in a plant cultivation house 10 is provided, and a valve is provided in the vicinity of the liquid feeding pipe 21 in the plant cultivation house 10 so that the space K14 above the plant cultivation house 10 is provided. A liquid feed pipe 21 having a height is installed in the entire length direction, and a plurality of nozzles are arranged in the liquid feed pipe 21 at predetermined intervals for downward spraying. It is possible to reduce the amount of pesticide sprayed by generating a floating size of the plant, and firmly attaching and controlling the back of the crop and the lateral surface of the stem. [Selection] Figure 1【課題】防除設備を栽培農家の方々が、安心して容易に操作できる静止防除設備を構成し、植物栽培ハウス内噴霧の薬液を作業員に影響を与えることなく、植物栽培に付着する病害虫を確実に駆除できる、安価な防除システムを提供する。【解決手段】植物栽培ハウス１０内に病害虫予防剤を含む薬液の噴霧手段を、送液管２１が植物栽培ハウス１０内に入った近辺にバルブを設け、植物栽培ハウス１０上部の空間部Ｋ１４に高さを有した送液管２１を全長方向に架設し、送液管２１に複数ノズルを下向噴射に所定間隔で配置装備し、作物の種類によっては、ノズル噴射の圧力調整コントロールによって霧状の浮遊サイズを生成し、作物の葉裏や茎の横面にもしっかり付着防除ができ、農薬の散布量を減らすことが可能である。【選択図】図１
