Tabbatarwa, kwayoyin halitta da mafita na halitta don kawar da scab dankalin turawa a gida da lambun.
Cutar sankara ce ta kowa a duk inda aka shuka dankali. Alamomin scab ɗin dankalin turawa sun haɗa da launin ruwan kasa mai duhu, spots pithy wanda za'a iya tasowa da "warty." Waɗannan raunukan na iya shafar ɗan ƙaramin yanki na saman tuber ko kuma su rufe shi gaba ɗaya. Wani lokaci sassan ribbed sun karya zoben concentric.
Za a iya cin dankali tare da ɓawon burodi?na yi fare! Harshen da abin ya shafa, ko da yake ba su da kyau, ana iya ci. Kawai a datse ɓangarorin fata da/ko nama kuma a dafa kamar yadda aka saba. |
Dankali scab yana haifar da ƙwayoyin cuta masu kama da ƙwayoyin cuta. Streptomyces scabies, overwintering a cikin ƙasa da faɗuwar ganye. Kwayoyin halitta na iya rayuwa har abada a cikin ƙasan alkaline kaɗan, amma yana da ƙarancin ƙarancin ƙasa a cikin ƙasa mai yawan acidic. Ana yada shi zuwa tsire-tsire ta hanyar tubers iri masu cutar, iska da ruwa. Kwayar halitta kuma tana yaduwa a cikin sabon taki domin tana iya tsira ta hanyar narkewar dabbobi. (Koyi yadda ake shuka dankalin turawa a nan.)
S. scabies shiga ta cikin pores (lentils) a cikin mai tushe, ta hanyar raunuka da kuma kai tsaye ta cikin fata na matasa tubers. Baya ga dankali, wasu amfanin gona kuma suna kamuwa da cutar: beets, radishes, turnips, karas, rutabaga da parsnips. Ya kamata a yi la'akari da wannan lokacin ƙirƙirar jadawalin juyawa amfanin gona.
Note: S. scabies zai iya dawwama a cikin ƙasa na shekaru da yawa in babu dankali.
Лечение
Duk matakan kulawa masu zuwa sun tabbatar da tasiri akan scab dankalin turawa. Koyaya, a mafi yawan lokuta ana buƙatar haɗin waɗannan hanyoyin.
- Shuka bokan, dankalin iri mara cuta da iri masu juriya a duk lokacin da zai yiwu. Muna ba da shawarar yin amfani da nau'ikan nau'ikan fata masu launin ja-launin ruwan kasa saboda sun fi tsayayya da cutar.
- Juya tushen amfanin gona ta hanyar dasa su a wurare daban-daban don iyakance cututtuka.
- Dankali scab ya fi kowa a bushe, kasa alkaline. Rage ƙasa pH ta ƙara matakin sulfur. Ana sarrafa cutar ko kuma an danne ta sosai a matakan pH na ƙasa na 5.2 ko ƙasa. Ana samun kayan gwajin ƙasa mai sauƙi da araha don gwajin pH akai-akai.
- Yin maganin amfanin gona mai rufe-mustard, canola, da alfalfa-kafin shuka dankali zai taimaka wajen rage kamuwa da cuta.
- Wasu masu noman suna ba da rahoton nasarar yin amfani da gypsum na noma kafin yin shuka a ƙimar kilo 25 a kowace ƙafar murabba'in 2,000. Wannan zai ƙara abun ciki na calcium na ƙasa kuma yana taimakawa gina ganuwar tantanin halitta a cikin tsire-tsire. (Lura: S. scabies yana rushe haɓakar bangon tantanin halitta, wanda ke haifar da lalacewa.)
- Isasshen shayarwa da wuri a cikin ci gaban tuber na iya yin tasiri mai mahimmanci akan ɓacin rai, amma kuna buƙatar kiyaye ƙasa m na makonni 2-6. Wannan hanya tana da tasiri saboda yawan danshi na ƙasa yana ƙarfafa haɓakar ƙwayoyin cuta, wanda zai iya motsawa S. scabies a saman dankalin turawa.
- Do NOT sama da ruwa.
Tip: Idan za ku dasa a cikin ƙasa inda tubers ba a yi girma a baya ba ko kuma inda aka san yankin ba shi da scab, ku bi da dankalin iri tare da sulfur fungicide don rage yaduwar scab.
A baya