Unoziva here kuti mavara eyellow anobuda pamashizha echibage ndeapi?Ndiyo ngura yechibage!Ichi chirwere chefungal chinowanikwa pachibage.Chirwere ichi chinowanzoitika pakati nepakati pekukura kwechibage, uye chinonyanya kubata mashizha echibage.Mumatambudziko akaoma, nzeve, husk uye maruva echirume anogonawo kukanganiswa.Mashizha akakuvara akatanga akapararira kana kuungana netumapundu tudiki tweyero kumativi ese.Nekukura uye kukura kwebhakitiriya, mablister akawedzera kusvika kutenderera kusvika kune oblong, zviri pachena akasimudzwa, uye ruvara rwakadzika kusvika kune yellowish brown, uye pakupedzisira epidermis yakaputika uye yakapararira.Ngura-ruvara upfu.

Nzira yekudzivirira sei?Nyanzvi dzezvekurima dzakapa mazano mana ekudzivirira:

1. Nzira yekushandiswa kwetsvimbo refu yekupfapfaidza uye muromo wakatwasuka inogamuchirwa kuisa mushonga pachibage chemunda, uye nzira yekushandisa drone inogona kugamuchirwa.

2. Magadzirirwo efungicide akakodzera ekudzivirira uye kutonga ndeaya: tebuconazole + tristrobin, difenoconazole + propiconazole + pyraclostrobin, epoxiconazole + pyraclostrobin, difenoconazole + pyraclostrobin Pyraclostrobin + Clostridium, nezvimwewo.

3. Sarudza mhodzi dzechibage dzinoshingirira kuita ngura

4. Ita basa rakanaka mukudzivirira ngura pachine nguva, uye unogona kumwaya mamwe mafungicides kudzivirira ngura.