Amachokoza amagqabi angwevu ukwabizwa ngokuba ngamachokoza amagqabi esesame ngamafama emifuno xa evelisa.Ikakhulu iyonakalisa amaqabunga, kwaye kwiimeko ezinzima, i-petioles yonakaliswe.Kwinqanaba lokuqala lesi sifo, amagqabi agqunywe ngamachaphaza amancinci akhanyayo.Izilonda zifakwe emanzini kwaye aziqhelekanga.Umbindi wezilonda ungwevu-mdaka ukuya kumthubi-mdaka.Imiphetho yezilonda ziihalos ezityheli-brown.Izilonda zitshone kunye ne-2 ukuya kwi-5 mm ububanzi., izilonda zivame ukugqobhoza kumanqanaba okugqibela.

【Iimpawu ezingaqhelekanga】 Izilonda ngamabala angqukuva abomvu-mdaka.Kwinqanaba lokuqala lokuqala, amagqabi abonisa amachokoza amancinci abomvu-mdaka angqukuva.Umbindi wesilonda ungwevu okhanyayo, kwaye ihalo emdaka ibonakala ecaleni.Izilonda zikhulu kancinci kunechokoza lamagqabi angwevu kwaye umbala uqaqambile.Emva kokwanda, izilonda ziba ngamachokoza angqukuva amdaka ngebala aze amagqabi ajike abe tyheli.Ukuthintelwa kunye nokunyangwa kwamachokoza amdaka kuyafana nechokoza lamagqabi.

【Unobangela wesi sifo】I-pathogen idlula ebusika emasimini njenge-mycelium kunye nezifo ezihlala zihleli.Imbewu yemolekyuli isasazwa kukuhamba komoya, amanzi okunkcenkceshela, nokuchaphaza kwemvula, kwaye ingena ngestomata.Imozulu efudumeleyo, efumileyo, enemvula, ukutyala okuxineneyo, kunye neendawo ezinomoya ovuthuzayo zisengozini yesi sifo.Izandyondyo zemvula, ukufuma okuphezulu, ukungachumi ngokwaneleyo, ukukhula okubuthathaka kwezityalo kunye nezifo ezimandundu.Ngokuqhelekileyo, ukutyala kwiindawo ezikhuselweyo entwasahlobo kuneziganeko eziphezulu zesifo kunekwindla, kwaye isantya sobhubhane sikhawuleza.Ngenxa yesivuno esikhulu seziseko eziqinileyo zokutyala iziqhamo, izixa ezaneleyo zezichumiso eziphilayo kunye nezichumisi ezihlanganisiweyo kufuneka kutyalwe imali.Ngokuchasene noko, ilahleko ebangelwa ngubhubhani wezifo ngenxa yokuchuma nolawulo olubanzi ayinakuphepheka., kufuneka kunikwe ingqalelo enkulu kwaye kuthintelwe kwangethuba.

【Indlela yokuhlangula】
Ulawulo lwendalo: Ukutyala okuxineneyo okufanelekileyo.Ubuninzi beentlobo eziziswayo ngokuqhelekileyo buncinci kuneentlobo zasekhaya, kodwa isivuno siphezulu.Faka ngokufanelekileyo izichumisi zebhayoloji kunye nezichumisi ze-phosphorus kunye ne-potassium, ukuqinisa ulawulo lwentsimi, ukunciphisa ukufuma, kunye nokuphucula umoya kunye nokuhanjiswa kokukhanya.Emva kokufumana iimpahla, susa ngokukhawuleza iintsalela ezigulayo kwaye ubulale iintsholongwane emhlabeni.

Ulawulo lweMichiza: Kucetyiswa ukuba kusetyenziswe uthintelo jikelele lwezifo zamatamatisi kunye nomyalelo wolawulo lothintelo jikelele.Ngenxa yokuba ngokukhawuleza kakhulu kwaye kunzima ukukhusela, ukuthatha i-25% ye-Azoxystrobin ngamaxesha angama-1500 okuthintela kuya kuba nefuthe elihle kakhulu.