2018 (94)
2019 (48)
白粉病
https://www.hgtv.com/outdoors/gardens/planting-and-maintenance/preventing-rose-diseases
You can make your own powdery mildew spray by combining 3 teaspoons baking soda with 2 tablespoons highly refined summer oil and 1 gallon of water.
Spray every 10 days to two weeks.
在使用重碳酸鹽的過程之中應考慮使用劑量的問題,以稀釋200倍,每7天噴一次,連續3次的效果最穩定,若能添加天然的展著劑,界麵活性劑或礦物油,則防病效果更佳。
鏽病 rust fungus
15oz (450ml) milk diluted with 120 oz (3600) water. 牛奶稀釋8倍, or 420ml 稀釋到one gallon。
每星期一次,噴三次
https://www.bilibili.com/video/BV1js411p7WB/?spm_id_from=333.788.recommend_more_video.3
白粉病——綠妃 紅蜘蛛——愛滿枝 金滿枝 愛卡蟎 阿維菌素 輪換交替打 黑斑——氟矽? (治療)氟代森錳鋅(可防)百菌靈(治愈後可防)