A cikin noman kore albasa, tafarnuwa, leek, albasa da sauran albasa da tafarnuwa kayan lambu, sabon abu na busassun tip ne mai sauki faruwa. Idan ba'a sarrafa iko da kyau ba, yawan adadin ganyen shuka duka zai bushe. A lokuta masu tsanani, filin zai zama kamar wuta. Yana da tasiri mai girma akan yawan amfanin ƙasa, kuma a lokuta masu tsanani, ba zai iya haifar da girbi ba. Menene musabbabin hakan da kuma yadda za a hana shi? A yau, Ina so in ba da shawarar kyakkyawan maganin fungicides ga kowa da kowa, wanda ke da tasiri mai mahimmanci akan rigakafi da sarrafa albasarta da tafarnuwa.
1. Dalilan bushewar tip
Akwai dalilai da yawa na busassun tukwici na albasa da tafarnuwa kayan lambu, yafi physiological da pathological. Busassun tukwici tare da kyawawan kaddarorin ilimin lissafi galibi saboda fari da ƙarancin ruwa, kuma busassun busassun busassun busassun sun fi haifar da mold da blight. , Mafi mahimmanci dalili na busassun busassun a cikin samarwa shine mold da blight.
2. Babban bayyanar cututtuka
Grey mold lalacewa ta hanyar koren albasa, tafarnuwa, leek da sauran Albasa da tafarnuwa kayan lambu bushe tip yawanci "kore bushe", da wuri, a kan ganye girma da yawa fararen spots, lokacin da zafin jiki da zafi ya dace, cutar ta yadu daga ganye. tip down, haifar da bushe ganye. Lokacin da zafi ya yi yawa, ana iya samar da babban ƙugiya mai launin toka akan matattun ganye.
Busassun tukwici na kore albasa, tafarnuwa, leak da sauran kayan lambu da cutar ke haifarwa galibi “fararen bushewa ne”. A farkon cutar, launin kore da fari suna bayyana akan ganyen, wanda ya zama launin toka da fari bayan fadadawa, kuma duk ganyen suna bushewa a mataki na gaba. Lokacin da ruwan sama ko zafi ya yi yawa, cutar tana tsiro da farin ulu; Lokacin da yanayi ya bushe, farar mildew yana ɓacewa, yaga epidermis kuma ganin mycelium fari ulu. Lokacin da cutar ta yi tsanani, filin ya bushe, kamar wuta.
3. Dalilin cutar
A ƙarƙashin yanayin zafin jiki masu dacewa, babban zafi shine babban dalilin faruwa da yaduwar botrytis da blight. Botrytis cinerea da Phytophthora galibi suna overwinter ko lokacin rani a cikin ƙasa da ke haɗe da jikin mara lafiya. Lokacin da yanayin zafi da zafi suka dace, ƙwayoyin cuta masu cutarwa da suka rage a jikin marasa lafiya suna fara tsiro, suna samar da adadi mai yawa na hyphae da conidia, waɗanda ke mamaye ƙasa. A cikin jiki mai masauki, da kuma sha na gina jiki daga sel ko sel don girma da haifuwa.
Wadannan conidia ko mycelium suna yaduwa a cikin filin ta hanyar iska, ruwan sama, ruwan ban ruwa, da dai sauransu, kuma suna ci gaba da kamuwa da wasu tsire-tsire. Ƙarƙashin yanayin zafi da yanayin zafi masu dacewa, yaduwar yaduwa cikin sauri, kuma gabaɗaya yana iya haifar da babban abin da ya faru a cikin kusan kwanaki 7.
4. Hanyoyin rigakafi
(1) zaɓi nau'ikan da ke jure cututtuka.
(2), tsaftace lambun, cire ƙwayoyin cuta cikin lokaci don hana yaduwar ƙwayoyin cuta.
(3), kula da magudanar ruwa, hana ruwan fili.
(4), noma tsire-tsire masu ƙarfi, ƙara yawan takin zamani, aikace-aikacen da ya dace na nitrogen, phosphorus, potassium taki, haɓaka juriya na cututtukan shuka.
(5), feshin farko50% carbendazimtasirin ruwa yana da kyau. 6. Tsaftace ragowar marasa lafiya a cikin filin lokaci bayan girbi albasa, da kuma lalata su a tsakiya.
Lokacin aikawa: Oktoba-31-2023
