Indwara n'ibyonnyi kuri karoti

• Kirabiranya (Alternaria dauci)

Iyi ndwara iterwa n'uduhumyo twitwa . Amabara y'ikigina kijimye cyangwa ikijuju aza ku mababi. Ahakikije ayo mabara hahinduka umuhondo, maze amababi yafashwe akuma. Amababi ashaje ni yo abanza gufatwa, kandi aho indwara yakabije ni ho amababi akiri mato afatwa. Ibibara binini bishobota kuza ku nkondo y'amababi ariko ntibize ku mababi

Mu bihe by'ubushyuhe burimo ubuhehere, gupfa kw'amababi yafashwe birihuta cyane ku buryo ubona karoti yarabiranye rwose. Uduhumyo dutera iyi ndwara dufata imbuto, kandi dushobora kuguma mu butaka igihe kirekire twibera mu bisigazwa by'ibihingwa.

Kuyirwanya:

• Gukoresha imbuto za kijyambere zidapfa gufatwa n'iyi ndwara niba zihari.
• Gukoresha imbuto zahawe icyemezo zitarwaye. Igihe umuhinzi akoresheje imbuto yibikiye, agomba kubanza kuzisukura n'amazi ashyushyes.
•  Gusimburanya ibihingwa no kugirira isuku umurima.
• Kongera urumuri mu murima wicira karoti no guhinga ku mitaboKudakoresha .
• Kudakoresha cyangwa gukoresha ifumbire nkeya irimo azote.
• Kugenzura umurima kenshi kugira ngo uramutse ubonye ibimenyetso ugire icy ukora hakiri kare.
• Gukoresha umuti urimo umuringa bishobora kugabanya ubwandu. 

Urubobi

Iyi ndwara iterwa n'agahumyo kitwa "Erysiphe polygoni (E. heraclei)". Irangwa n'urubobi rwera rugaragara ku mababi. Amababi yafashwe araraba akuma. Iyi ndwara ifata imbuto.  

Kuyirinda no kuyirwanya:

• Gukoresha imbuto zahawe icyemezo zitarwaye. Iyo umuhinzi akoresha imbuto yibikiye, agomba kubanza kuzogesha amazi ashyushye.
• Kugirira isuku umurima.
• Gutera umuti urimo sirifire ( sulphur based products) aho byemewe.

Indwara zifata karoti mu buhunikiro

Indwra z’ingenzi zifata karoti zamaze gusarurwa ni ububore buterwa ahaini n’agahumyo bita Sclerotinia  ( soma Sikelerotiniya). Ako gahumyo kanduza karoti zikiri mu murima kanyuze ku rugori rw’ikijumba. Mu gihe karoti zasaruwe zihunitse/ zibitse, ako gahumyo gatuma zizana uruhumbu rw’umweru rukazitwikira. Karoti zafashwe n’ubwo bubore zirorohera kandi zikigiramo amazi.

Ushobora kugabanya kwandirika guterwa n’uduhumyo twa Sikelerotiniya ukoresheje ibi bikurikira:

(1) Gukoresha umuti wemewe wica uduhumyo mbere yo gusarura ( urugero: Bravo 500)

(2) Guhita uvana ku zuba karoti umaze gusarura

(3) Kongera umwanya usigara hagati ya karoti n’indi mu murima  kugira ngo wongera ubuhumekero hagati yazo kuko kuba amababi yazo yamara igihe atose bitera ububore

(4) Gusimburanya ibihingwa

(5) Gukoresha umuti wemewe urwanya za mikorobi igihe umaze gusarura ( urugero: Dowicide (O- phenylphenol) ku rugero rwa gr 98muri litiro y’amazi