Rapeseed farin tsatsa bayyanar cututtuka da rigakafin

A shekarun baya-bayan nan dai, yawaitar farar tsatsa da ake yi wa nau'in fyade ya yi yawa, wanda hakan ya yi matukar shafar ingancin nau'in fyade.
Farin tsatsa na rapeseed na iya shafar duk gabobin da ke sama a duk tsawon lokacin girma na fyaɗe, galibi suna lalata ganye da mai tushe. Lokacin da ganyen ya fara kamuwa da cutar, ƙananan ɗigon haske koren haske masu launin rawaya za su bayyana a gaban ganyen, wanda sannu a hankali ya juya launin rawaya zuwa raunuka. Fararen tabo kamar fenti za su bayyana a bayan ganyen. Lokacin da tabo ya tsage, farin foda zai fito. A cikin lokuta masu tsanani, cutar ganyayyaki sun juya launin rawaya kuma sun fadi. Saman kashin da ya kamu da cutar ya kumbura kuma yana lankwasa, yana daukar siffar “faucet”, kuma gabban furen ya lalace. Furen suna da nakasu, suna girma, sun zama kore kuma suna kama da ganye, kuma ba sa bushewa na dogon lokaci kuma ba su da ƙarfi. Launukan da ke kan gindin su ne fari tabo masu tsayi, kuma raunukan sun kumbura kuma suna lankwasa.

Akwai lokuta kololuwa guda biyu daga bolting zuwa cikakkiyar fure. Cutar tana da saurin faruwa akai-akai a ƙarƙashin ƙarancin zafin jiki da yanayin yanayi mai zafi. Cutar ta fi kamari a wuraren da ke da ƙasa mara kyau, rashin magudanar ruwa, ƙasa mai nauyi, yawan shayarwa, yawan zafin jiki tsakanin dare da rana, raɓa mai nauyi, da yawan amfani da takin nitrogen.
Rigakafin da kuma maganin wannan cuta na iya farawa daga bangarorin masu zuwa. Na farko, wajibi ne don zaɓar nau'ikan masu jure cututtuka. Nau'in mustard da tsaban rapes suna da juriya sosai, sai nau'in kabeji. Nau'in kabeji yana da saukin kamuwa da cututtuka kuma ana iya zaba bisa ga yanayin gida; na biyu, wajibi ne a yi jujjuya tare da noman ciyawa na tsawon shekaru 1 zuwa 2 ko kuma a juya amfanin gona tsakanin ambaliyar ruwa da fari; na uku, wajibi ne a kawar da cututtuka sosai. 'Ya'yan itãcen marmari, idan "faucets" suka bayyana, yanke su cikin lokaci kuma suna ƙone su sosai; na hudu, taki yadda ya kamata da share ramummuka da zubar da tabo.

A lokacin bolting lokacin rapeseed, Chlorothalonil75% WP ruwa sau 600, ko Zineb65% WP 100-150g/667 murabba'in mita, ko Metalaxyl25% WP 50-75g/667 murabba'in mita, fesa kilo 40 zuwa 50 na ruwa daidai, sau ɗaya kowace 7. zuwa kwanaki 10, fesa sau 2 zuwa 3, wanda zai iya hana faruwar cututtuka yadda ya kamata.

A farkon matakin fure, zaku iya fesa Chlorothalonil75% WP 1000-1200 sau ruwa + Metalaxyl25% WP 500-600 sau ruwa, ko Metalaxyl 58% · Mancozeb WP 500 sau ruwa, sarrafa 2 zuwa sau 3 ci gaba, tare da tazara na Kwanaki 7 zuwa 10 tsakanin kowane lokaci, wanda ke da tasiri mai kyau akan farar tsatsa.