Powdery mildew nindwara isanzwe yangiza inyanya.Yangiza cyane amababi, petoli n'imbuto z'ibihingwa by'inyanya.

Ni ibihe bimenyetso biranga ifu y'inyanya mildew?

Ku nyanya zihingwa mu kirere, amababi, petoli, n'imbuto z'ibimera birashoboka ko byanduye.Muri byo, amababi niyo yibasiwe cyane, agakurikirwa nigiti, kandi imbuto zangiritse cyane.

Mugihe cyambere cyindwara, uduce duto twicyatsi tuzagaragara kuri petioles no hejuru yibibabi byibiti, hanyuma bigenda byiyongera buhoro buhoro, byerekana ibibara byijimye bidasanzwe hamwe na flok yera kuriyo.

Ku ikubitiro, igicucu kiboneka gake, hanyuma kikaba cyuzuye, cyerekana ibibara bisa, birwaye kandi bigenda bikwirakwira buhoro buhoro.

Iyo indwara ikomeye, amababi yikimera azaba yuzuyeho ifu yera hanyuma ahuze buhoro buhoro, kandi amababi ahinduka umuhondo nubururu.Hasigaye amashami.

Indwara zinyanya:

1. Ubushuhe buri hejuru nimpamvu nyamukuru itera indwara, kandi ikirere gikonje nacyo gikwiranye no kubaho kwa powdery mildew.Ubushyuhe bukwiye bwo gutangira ni 16-24 ℃.

2. Ubushuhe bukwiye bwo kumera kwa conidia irwanya desiccation ni 97-99%, kandi firime yamazi ntabwo ibereye kumera kwa spore.

3. Iyo imvura imaze kugwa, ikirere cyumye, ubushuhe bwumurima buri hejuru, kandi ifu yifu ikunda kubaho.

4. Cyane cyane iyo ubushyuhe bwinshi n amapfa bisimburana nubushyuhe bwinshi nubushuhe bwinshi, indwara irakomeye.

Ni uwuhe muti wica udukoko uvura ifu ya mildew?

Pls twandikire kugirango tubaze.