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#杜鹃养护技巧 杜鹃叶子出现桔焦、叶焦、落叶、叶子变红怎么办?

一花一世界
2016-12-24
  梅雨季节杜鹃花叶焦脱落怎么办
  挽救措施:①迅速搬到凉爽、通风又半阴的室外去护理。②盆土于应及时浇水,平时叶面上也应多洒水,并增加环境湿度。③暂停施肥。通过精心护理,病情就会好转。
  杜鹃花夏季叶片桔焦怎么办
  ①阳光曝晒。杜鹃喜半阴环境,尤其是在盛夏,盆栽杜鹃应放在荫棚下面,防烈日灼伤。②浇水不当。盆土不能过干,也不能太湿,还应注意叶片喷水和地面喷水,以增湿降温。③施人了浓肥或生肥。杜鹃花根系细弱,吸肥力差,施了浓肥和生肥后,会灼伤根系,造成叶尖或叶片枯焦。④药害。杜鹃有病虫时,喷洒药剂浓度过高,产生药害。
  挽救方法:由药害造成的叶片枯焦,把杜鹃放置在半阴的露天,增加叶面喷水次数,并暂停施肥,让枝干上重新长出叶子;如果是由肥害造成而时间不长的,可采取“灌肠”(大水冲洗)或及时换盆土,也可得以挽救。
  杜鹃花叶片由绿变红是什么原因
  多数杜鹃花的生长期是从初夏到初秋,当植株进入冬季休眠前积累在叶片中的葡萄糖等养分经低温刺激后就呈现出红色。等到第2年春暖花香时,杜鹃花的叶片又从红重新转变成绿色。
  特别是一些小叶子的夏鹃,入秋后叶片开始发红,到了冬季叶片就红得更厉害。还有一些半常绿的杜鹃花,如春鹃、夏鹃,一切养护管理都很正常,但是到了冬季叶片变红后,有一部分叶片再由红变黄而后逐渐脱落,这些都是植物正常的新陈代谢生理现象。
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