Reshen Rosselkhoztsentr a Jamhuriyar Komi ya yi gargaɗi game da haɗarin yaduwar kwayar cutar dankalin turawa ta annular. Wannan cuta ce mai haɗari da zata iya lalata kusan kashi 45% na amfanin gona, saboda haka yana da matukar mahimmanci a ɗauki matakan akan lokaci yayin da alamomin farko suka bayyana.
Wakilin cutar shine kwayar cutarwa ta jinsin Corynebacterium sepedonicum (Clavibacter michiganensis subsp. Sepedonicum).
Cutar na shafar ganye, mai tushe, stolons da tubers. Rushewar tsire-tsire yana fara bayyana yayin lokacin furanni kuma yana ci gaba har zuwa ƙarshen lokacin girma. Ba duka bane zasu iya bushewa a daji dankalin turawa, amma 1-2 tushe kawai. A kan yankewar kara, ana ganin ruwan rawaya ko duhun jirgin.
A lokacin bushewar yanayi, tsire-tsire masu cuta suna bushewa da sauri, tubers ba su da kamuwa da cuta a bayyane, saboda yanayin ɓoyewar kamuwa da cutar, kuma a cikin shekaru masu ruwa da matsakaicin yanayi, shukar tana bushewa a hankali, yayin da lalacewar tubers ke ƙaruwa.
A kan tubers, cutar ta nuna kanta azaman zobe da rami. Tare da rubewar zobe, ana lura da necrosis na tasoshin zobe, lokacin da aka matse su, fitar da hucin mucous mai launin rawaya. Tare da ruɓaɓɓen ruɓaɓɓu, an kirkiro ɗigon mai mai ƙanshi a ƙarƙashin fata na tuber, wanda ke ƙaruwa cikin girman yayin ajiya.
Cututtukan tubers sune asalin tushen kamuwa da cutar.
Kwayar cuta ba ta yin ɓarna a cikin ƙasa, amma tana iya ci gaba kan tarkacen tsire-tsire.
Cutar na yaduwa yayin girbi: ana saurin daukar kwayar cuta ta hanyar wukake yayin yankan tubers, tare da lalata kayan aikin gona.
Hanyar mafi dacewa don bincikar rufin zobe shine yin gwajin polymer sarkar (PCR).
Matakan kulawa na asali
Babu wasu sunadarai don magance ruɓar zobe.
Matakan kariya:
• Kayan shuka mai lafiya
• Amincewa da juyawar amfanin gona.
• Noma da nau'ikan juriya.
• Cire tsire-tsire masu cuta a lokacin girma
• Dumamar kwayar na tsawon makonni 2-3 a zafin jiki na digiri 14-18 kafin adanawa ko a ƙarshen lokacin ajiyar don gano tubers da ke cuta.
• Yankan lokaci da kuma cire shi.
• Tattalin shiri sosai da kuma maganin cututtukan dankalin turawa kafin kwanciya tubers.