Rashin blight shine cututtukan cututtukan dankali, tumatir da albarkatu masu dangantaka. Idan akwai lalacewa, kashi 70% zai rage yawan amfaninta. Saboda haka, lura da dankalin turawa, tubers kafin dasa shuki daga phytophthora wani muhimmin tsari ne wanda zai taimaka wajen kare asarar amfanin gona.
Fighting dankalin turawa, phytophthora
Lokacin da cutar dankali da phytophthora rinjayar da tubers, ganye da kuma mai tushe. Da farko, ana lura da alamun cutar akan fitowar kayan lambu. Dark ganye suna bayyana a kan ƙananan ganye da kuma raba sassa na tushe, wanda hanzari ƙara. Sa'an nan kuma zai kai ga baƙar fata da bushewa daga cikin ganyayyaki, kuma a yanayin yanayin zafi - don juya su. A kan tubers, phytophthora yana nuna kanta a cikin nau'in grayish, sa'an nan kuma launin ruwan kasa, m spots. A wannan yanayin, mcin necrosis yana yada cikin tuber.
Tsarin marigayi marigayi yana da sauri sosai. A yanayi mai sanyi da sanyi, cutar zata iya halakar da tsire-tsire a shafin a cikin makonni 1-2.
Hana yaduwar cututtuka zai taimaka wajen lura da dankalin turawa a gaban dasa shuki daga phytophthora.
Yadda za a bi da dankali daga phytophthora kafin dasa?
Mataki na farko zai zama cikakken bincike na kayan abincin domin gano ƙwayar cutar mara kyau. Da yawa daga cikinsu, mafi kusantar cutar za ta kasance.
Bugu da ƙari, dole a biya da yawa kulawa ga wurin dasa shuki dankali. Ya kamata a zaba wannan shafin sosai da sauri kuma a bushe da sauri bayan ruwan sama. A matsayinka na mulkin, ƙwaƙwalwar cutar ta hanzari tayi kusa da wuri na belts na gandun daji, a wuraren da ba a cikin filin. A kan shafin ba kamata ya zama kwakwalwa ba. Dalilin bayyanar phytophthora a cikin dankali zai iya zama kamuwa da cuta daga tumatir seedlings, wannan cutar ta shafi. Sabili da haka, ana bada shawara don ware tsire-tsire daga juna.
Preplant germination na tubers ya kamata a da za'ayi. Wannan zai kara hanzarta cigaba da cigaban shuka kuma rage yiwuwar halakar su ta hanyar blight.
A aiki dankali daga phytophthors ne da za'ayi tare da wadannan shirye-shirye:
- Maxim, KS;
- Phytosporin;
- Ridomil Gold MC;
- Bravo;
- Shirlan;
- Ditan M-45.
Jiyya na dankalin turawa, tubers tare da waɗannan shirye-shirye na musamman zai jinkirta ci gaba da cutar na kwanaki 10-14. Wannan ƙaddara ne don kare amfanin gona na gaba.