树木和人一样，是有生命的，需要细心的呵护。大叶黄杨有较高的观赏价值，作为城市绿化植物材料，越来越受到人们的青睐。对大叶黄杨树来说，病虫害是一种严重的威胁，染病后死亡率很高，所以在的栽培时要特别重视对病虫害的防治。 大叶黄杨changjiandebingchonghaiyouchihuo、yachong、yeman、biancie、ribenguilajie、weimaoshijiandunjie、dayehuangyangchuangjiabing、dayehuangyangbaifenbing、dayehuangyangyebanbing、dayehuangyangmeiwubingdeng，xianjiangdayehuangyangbaifenbingzhengzhuangjifangzhifangfajieshaoruxia：
（大叶黄杨图片）
症状：
fabingchuqi，biaomianshangchuxianyicengbaisefenzhuangmeiceng，houqibaifenzhuangmeicengbianweihuise，zaiyepianshangsanshengxuduobaiseyuanxingxiaoban，suizhebingbanzhujiankuoda，xianghuyuhe，chengweibuguizededaban，shenzhizhanjuquanbuyemian。yepianbingbanshangchanshengbaisefenzhuangmeiceng，bingbanzhujiantunlv，bianhuang，zuihoubianheheisehuaisi。rujiangbingbanbiaomianbaisefencengmoqushi，zaifabingbuweichengxianhuangseyuanban。binghaiyanzhongshi，daozhiyepianzhousuojixing，xinshaoniuqu、weisuotingzhang，bingyinqiluoyekushao。
防治方法：
①gaishanzaipeitiaojian，zaizhiyuganzao、guangzhaochongzu、bujishui，turangshenhoufeiwodediqu。
②jiaqiangfeishuiguanli，zengshilin、jiafei，danfeishiliang；zhuyikanghanpailao，shimiaomushengzhangjianzhuang，tigaokangbingnengli。
③jiehexiujian，jianchubingzhibingye。gaohaodongjiqingyuangongzuo，saochubingzhiyejizhongshaohui；shengzhangqifaxianbingyebingzhijishijiandiaoshaohui，keyouxiaojianshaobinghaidechuqinranjunyuanhezaiqinranjunyuan。
④helishiyongyaojijishifangzhi，zhuyiyaojijiaotishiyong，yimianbaifenjunchanshengkangyaoxing；penyaoxizhizhoudao，zhuyipenbuneitangheyebei。dongjiyong3dudeshiliuhejifangzhiliangci，jiangeqiyiyue。dayehuangyangzhanyeqiheshengzhangqi，youqishi4zhi5yuehe9zhi10yue，kexuanyongyixiayaojifangzhi；25％fenxiuningkeshixingfenji1500~2000beiye、70%jiajituobujinkeshixingfenji800~1000beiye、50％benlaitekeshixingfenji1000~1500beiye、50％tuijuntekeshixingfenji800~1000beiye，zaibinghaikaishichuxianshijiulijijinxing，7~10tianzuoyoupenyici，lianxupen4~5ci。
大叶黄杨白粉病shichangjianbinghai，shoubaifenbingweihaishi，huijiangdiqiguanshangxing。kejianfangzhidayehuangyangbaifenbingshiyouduomezhongyao，duiyanzhangshouminghetigaoguanshangjiazhishifeichangyoubiyaode。
