PROBLEM TO BE SOLVED: To provide a chemical-spraying device that can spray chemicals, as it is linked to the movement of the seedlings placed on the seedling feeder, though their structures are made simple and easy.SOLUTION: On the seedling feeder, is attached a chemical sprayer 20 that is operatively driven by the rotation of the conveying roller 16. When the reserve seedlings 15 move on the seedling feeder and pass through the conveying roller 16, when seedlings are fed the chemicals are sprayed on the seedlings. As the chemical sprayer 20 is connected through the conveying roller 16 and the conveying chain 28, the motive power for driving the chemical sprayer 20 is in no need.COPYRIGHT: (C)2008,JPO&INPIT【課題】簡易な構造でありながら、苗供給装置に載置した苗の動きに連動して薬剤を散布する薬剤散布装置を提供する。【解決手段】苗供給装置に、搬送ローラ16の回転に連動して駆動する薬剤散布装置20を設け、苗補給の際、予備苗15が苗供給装置上を移動して搬送ローラ16を通過すると苗に薬剤が散布される。薬剤散布装置20は搬送ローラ16と伝達チェーン28を介して連結しているので、薬剤散布装置20を駆動する動力が不要である。【選択図】図2