一分快三

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DIZHI:XUHUIQUHUAJINGLU1305NONG8HAOHUADONGLIGONGKEJIYUANBZUO

西瓜病虫害识别及纺织技术(二)

2018/3/2 1

一分快三 GENJUXIGUASHENGZHANGZHOUQITEDIAN,TEBIEYANJIUCHUXIGUABINGCHONGHAIJIANBIEHEFANGZHIJISHU,DIERPIANSHIXIGUAYIFASHENGDEMANKUBING!

一分快三 XIGUAMANKUBINGDEFABINGGUOCHENGTUSHI:

西瓜蔓枯病防治要点:

一分快三 HELILUNZUO:TICHANGGUAYUSHUIDAOHUOQITAFEIHULUKEZUOWULUNZUO

ZHONGZICHULI:KEYONG55℃WENSHUIJINZHONG20FENZHONG,HUOYONG50%FUMEISHUANGKESHIXINGFENJIHUO50%DUOFUFENKESHIXINGFENJI,YIZHONGZIZHONGLIANGDE0.3%BANZHONG

JIAQIANGGUANLI:GAOQIDIMOZAIPEI。BUSHIYONGQIANCHAGUASHANGSHIYONGGUODEJIACAI。ZENGSHIYOUJIFEI,SHISHIZHUIFEI,YIFANGZHISHENGZHANGZHONGHOUQITUOFEI。BAOHUDIYAOJIAQIANGTONGFENGTOUGUANG,JIANSHAODISHUI,JIANGDIPENGSHINEISHIDU,QIMIANYINGBAOCHIBANGANZHUANGTAI。LUDIZAIPEIFANGZHIDASHUIMANGUAN,SHUIMIANBUCHAOGUOQIMIAN。YUJIJIAQIANGFANGLAO,JIANGDITURANGSHUIFEN。FABINGHOUSHIDANGKONGZHIJIAOSHUI

FANGZHIYAOJI:ZAIFABINGCHUQIJISHIYONGYAO,YAOJIKEXUANYONG80%DASHENGM-45KESHIXINGFENJI600BEIYE,HUO50%DUOJUNLINGKESHIXINGFENJI600BEIYE,HUO75%BAIJUNQINGKESHIXINGFENJI600BEIYE,HUO50%DUOLIUJIAOXUANJI500BEIYE,HUOKUHUANGHUICHUN500-800BEIYEDENGPENWU。

YAOJIFANGZHI:MEIGE5~7TIAN1CI,LIANXUFANGZHI2~3CI;ZHONGDIANPENZAIGUAMIAOZHONGXIABUJINGYEHEDIMIAN。

对于茎部病斑还可在发病初期削除茎部病斑,并涂抹枯黄回春30-80倍液加“920”稀释成浆糊状进行涂抹,有良好的防治效果。病情严重者用药量加倍