Akanakhulupirira kuti chitsamba chosungunuka sichitha matenda, koma izi sizowona. Chomeracho chimakhudza onse mavairasi ndi bowa omwe amanyamulidwa ndi mphepo, tizirombo ndi mbalame. Tiyeni tipeze kuti matendawa ndi otani omwe amamenyana nawo.
Leaf mottling
Matenda a tizilombo ta tizilombo ta tizilombo tomwe timagwiritsira ntchito tizilombo toyambitsa matenda timatulutsa chikasu, koma izi sizimachitika mofanana, ndipo timapepala tating'ono ndi tsamba timawoneka okongola nthawi yomweyo, kotero kuti palibe munda aliyense amene angaganize kuti chinachake chalakwika. Patapita nthawi, chitsambacho chimakhala ndi kachilomboka ndipo sichitha, ngati sichiyamba mankhwala, zomwe zimachepetsa kudulira.
Zovala Mwambo
Pali matenda oterewa omwe amachititsa kuti mankhwala awo asatheke ndipo ndikofunikira kuti awonongeke. Kwa izi ndi zithunzi za rhesus, zomwe, chifukwa cha kutuluka kwa kachilomboka, internodes amayamba kufupikitsa ndipo masamba akuchepetsedwa. Koma vuto lalikulu ndi kukula kwa mbali ya kugona, yomwe ikupita patsogolo ndikukula, ndipo masamba adakali osasinthika. Chomera choterocho chichotsedwa kwathunthu m'munda, chifukwa matendawa samayankha mankhwala.
Powdery mildew
Mofanana ndi zomera zina, powdery mildew imawonekeranso pakhomopo. Miphika imasonkhana pa masamba ndipo imafalikira mofulumira. Ngati simukuchita chithandizo, spores idzagonjetsa bwino mu cortex ndipo chaka chotsatira vuto lidzabwereza. Choncho kuyambira pachiyambi cha nyengo yokula, m'pofunikira kupopera ndi sulfure ndi zokonzekera monga Vektra ndi Skor.
Cercosporosis
Nthawi zina pa masamba pali madontho ang'onoang'ono amdima wakuda, akuwonjezeka pang'ono pang'onopang'ono. Izi ndizokulumikiza spores, zomwe zimapangitsa kufota ndi kuyanika kwa mbali zomwe zimakhudzidwa ndi chitsamba. Pofuna kupuma mankhwala, amayenera kupopera kumayambiriro kwa chaka ndi kukonzekera "Readzol", ndipo nthawi ya chilimwe ndi yankho la mkuwa wa sulfate kuphatikizapo sopo.
Ramulariasis
Kuchokera ku nthenda iliyonse yomwe imakhalapo pamtunduwu sungagwiritsidwe ntchito "Fundazol" , idzakhala yogwira ntchito ngati mankhwala ayamba pa nthawi. Nthendayi ya ramuliariasis ndiyomwe ndiyomwe pakamayambiriro kasupe ndikofunika kuti zitha kusokoneza. Pambuyo pake, monga zozizira zina, matendawa amayamba kwambiri.
N'zotheka kukayikira matendawa pofalitsa mawanga ofiira pa masamba ndi mzere wakuda. Pamene bowa amavundukuka, chobvala choyera chimapezeka, chomwe chimafalikira kuzungulira deralo, kukulitsa zomera zina. Kuphatikiza pa "Readzol" zingakhale zothandiza kugwiritsa ntchito osakaniza sopo wamba ndi mkuwa sulphate.