發生原因:zhezhongqingkuangyuhuangguadeshengchanghuanjingyouhendaguanxi,dingzhiqiwenduguodi,zhizhushengchangshizhongchuyuhuanmanshengchangzhuangtai,huozheshizaihuangguashengchangzhongqiyudaolianxuyinxuetianqi,guangzhaoqiangduyanzhongbuzu,hurantianqizhouqing,pengwenxunsutigao,huoqingtianjinjiezhejiaoguandashuidengdoukenengyinqizhezhongbuliangzhuangkuang。
防治方法:除了選擇耐低溫、弱光的抗性較強的品種,培育壯苗外,還要注意加強溫濕度管理,尤其是越冬茬黃瓜棚內最低溫度不能低於15度;及時擦拭棚膜,增加大棚采光率,有必要可增設反光幕和補光燈增強光照。另外,還可噴施豐收一號、雲大120等生長調理劑增強黃瓜綜合抗性。
手機版




