yousongyizaichenghuolvdideyuanyinshishenme？womentongguozixunyouzheduonianzaipeizhongzhijingyandemiaomuzhuanjia，dedaoruxiadaan：
原因一、未除掉病虫害
yousongzaiyizaiqianyingjianchashifouyousongmaochong、junleiweihai。ruyousongmaochong，keyongjuzhileishachongjihuomieyouniaoshachu，huopenyixieshajunleiyaoji，rutuijunte500beiye，yifangzhenjunkuosan。
原因二、散坨
yousongdengzhenyeshuzhongyizaishiyaodaitutuo，yousongdemaoxigenduo，xushuibaoshuinenglicha，ruguozaiyizaiguochengzhongzaochengsantuo，daliangdemaoxigenbeisunshang，yanzhongyingxiangshuifendexishou，jiangdichenghuolv。
原因三、浇水过多
yizhihou，chudiyibianshuiyaojiaotouwai，yihouturangbaochishirunjike，youqishutipenshuishigengyingzhuyi，shukengneibunengyoujishui。ruguoshoushangdegenxizhangshijianpaozaishuizhong，huizaochenglangen，yingxiangchenghuo。
原因四、浇水、保水不够
beifangdedongchunjijieduofeng、ganhan，suiranzaixiumianqi，zhengtenghaoshuiliangrengranhenda，zheiwangwangshiwomenhushideyidian，weitigaoyousongchenghuolv，chudongshuiyaojiaotouwai，xueneizuihaofumo，baochiturangshirun，chunjijishidachunshui。
