在茉莉花的栽植和养护过程中,最常见病害jiushibaijuanbinghetanjubing,ruguofangzhibujishihuizaochengzhengzhukusi。xiamianzhuyaozhenduizheiliangzhongbinghai,jieshaotamendefangzhifangfa:
茉莉花白绢病的防治方法
baijuanbingdezhengzhuang:moliganranbaijuanbingyihou,genjingbuweikaishibianhefulan,bingzhujianmanyankuozhan,chanshengbaisejuansizhuangbomo,biaomianchanshengdebaisejuansizhuangjunsi,houqibingbushengchuyoucaizizhuangdejunhe。juanzhuangjunsikemanyandaogenjingfujintushang,yanzhongshiquanpentumianchongmanbaisejunsi。ganbingpicengfulansiwanghouyinqiyepiankusituoluo,zaochengquanzhukusi。
jutifangzhidefangfaruxia:
1、youxiaokongzhibingyuan。jizhongchulibingpentu,yidaotianturangzuopentuzuihao;shiyongdeyoujifeiyaochongfenfushu,fanzhicailiaoyaocongwubingzhushangjianquqiancha,shengzhangqizhongbimianhuapenmijibaifang,zaochengtongfengbuliang。pentuzuihaocaiyongwuligaowenjiarechuli,huoxiajizaitaiyangxiabaoshaimiejun。
2、jishibachubingzhu。dangpenzaimolikaishifabinghou,jishibachushaodiaochuli,bingxueyongshihuihuodaisenanxiaodumiejun。
3、药剂防治。发病初期用药可控制病害流行,药剂有50%多菌灵可湿性粉剂500倍液,或70%甲基托布津1000倍液,向植株茎基部喷雾,以抑制病害蔓延。也可在植株基部撒施黑白粉(即草木灰3份、石灰1份)或石灰硫磺粉。
茉莉花炭疽病的防治方法
炭疽病的症状:主要发生在叶片上,有时也危害嫩梢。病叶最初出现淡绿色至黄色小斑点,随着病情扩展,病斑逐渐扩大,成圆形或近圆形,稍下陷,中央呈灰褐色至灰白色,边缘褐色,后期病斑上散生黑色小点,病斑直径2毫米至10毫米,严重发生时导致叶片枯死。
具体防治方法如下:
1、penzaimolizaishengzhangqijianyingjiehexiujianqingchubingye,bingjizhongshaohui,jianshaocanliubingjunhechuciqinranyuan。
2、jiaqiangzaipeiguanli。zengshiyoujifeiliao,tigaokangxing,penzaimoliyingfangjishui,baifangzaitongfengtouguangchu。
3、药剂防治。喷药宜早,预防为主。萌芽期开始喷药保护,防止病菌侵染,发病期连续喷药几次。防治炭疽病可用65%代森锌或代森锰锌500至600倍液,50%退菌特或80%多菌灵或40%炭疽福美或70%甲基托布津800倍液,或40%拌种双150至200倍液等,每隔10至15天喷药一次,喷药次数多少根据气候与病情发展而定。