During the rainy season, poor air circulation can lead to an increase in pests and diseases. Remove the stems of Gymnaster savatieri that have finished flowering and the flower spikes of the acanthus. Also remove any damaged or withered leaves. Spray with a fungicide to prevent the onset of disease. The acanthus will soon enter its summer dormancy period. The cut acanthus flower spikes can be dried and used as decorations.
梅雨時は風通しが悪いと害虫や病気が発生しやすくなります。花が終わったミヤコワスレの茎やアカンサスの花穂を取り除きます。痛んだり枯れたりした葉も取り除きます。病気の発生予防のために殺菌剤の散布もします。アカンサスはまもなく夏の休眠期に入ります。切ったアカンサスの花穂はドライにして飾れます。
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