Lokacin da girma karas, mutane da yawa fuskanci shan kashi na tushen amfanin gona karas gardama. Wannan ya haifar da gaskiyar cewa karas ya rasa dandano, ya zama mai laushi kuma yana da wuya a ci. Sabili da haka, ga manoma da suka sadu da wannan mummunar cutar, tambaya mafi mahimmanci ita ce: menene ya tsoratar da karba?
Bayyana fassarar karas
Tsarin yana wucewa ta hanyar ci gaba:
- A tsutsa yana tasowa daga farawa kwai. Yana da haske, haske-rawaya a launi, kuma yana da siffar kututture. Yana da gaba nuna tip. Bayyanar tsutsa na faruwa a cikin kwanaki 5-7 bayan kwanciya qwai. Suna shiga cikin asalin amfanin gona kuma suna ci har kusan wata daya.
- Furo yana fitowa daga tsutsa. An halin da tsawon 4-5 mm. Gashi mai launin ruwan kasa, ƙananan haske mai haske, fuka-fukai masu fuka-fuka, waɗanda suke a fili a baya.
- Kwararrun shine lokaci na red, wadda take kwance a cikin ƙasa don hunturu zuwa zurfin 6-25 cm.
Carrot tashi da yaki da shi
Don yadda za a magance kararra, kuna bukatar sanin lokacin lokacin da ya bayyana. Harshen tashi a kan haske yana faruwa a lokacin da kasar gona ta ƙoshi sosai a zurfin mita 5-10. Yawan zazzabi zai kai 16-18 ° C. Bayan kwanaki 25-30 bayan fitowar harbe na karas, lokaci na bayyanar ganinsu na farko biyu sun zo. Yawancin lokaci wannan ya faru a rabi na biyu na watan Mayu. Lokaci ne wannan shine farkon fararen ƙwayoyin ƙuda. Wannan tsari yana cikin lokacin rani.
Yin gwagwarmaya yana buƙatar ƙoƙari mai yawa. Wannan shi ne saboda tsawon lokaci na lokaci lokacin da kwari zasu iya sa qwai. Sabili da haka ya sa wa ɗayan al'ummomi dabam-dabam ya auku. Mutane da yawa larvae kafa a cikin kaka zamani kasance a cikin tushen, wanda zai haifar da su kara lalacewa.
Alamun lalacewar shuke-shuke ta hanyar kwari sune:
- bayyanar a kan ganyen wani halayyar ja-violet hue. Sa'an nan kuma launin rawaya, shutsawa da bushewa ya faru;
- bayyanar launin ƙananan baya a kan albarkatu masu tushe, kuma lokacin da aka yanke su, tsattsauran hanyoyi masu tsattsauran ra'ayi da tsirrai zasu iya ganowa.
Drugs daga karas tashi
Akwai hanyoyi masu zuwa don magance gardama:
- sunadarai;
- mutane;
- agrotechnical.
Hanyar sunadarai ta kunshi amfani da kwayoyi daban daban daga karamin mota. Mafi yawan kwari masu yawa shine:
- "Arivo";
- "Aktara";
- "Decis";
- "Fitoverm";
- "Vantex".
Ya kamata a gudanar da magani a safe ko maraice a zafin jiki fiye da +20 ° C.
Magunguna masu magani don kararrawa sun hada da wadannan ayyuka:
- lalacewa a tsakanin karas, dasa tare da ƙura ko taba mustard foda;
- Spraying na shuke-shuke da tincture na tafarnuwa ko albasa. Wannan hanya zai yiwu a mataki lokacin da tashi ya fara tashi. Don shirya tincture dauki 200 g na yankakken yankakken yanki kuma nace su a rana daya a cikin lita 2 na ruwa mai dumi. Sa'an nan kuma shirya akwati tare da lita 8 na ruwa, wanda aka ƙaddamar da sabulu na ruwa . An cire shi a ciki;
- tincture na needles (200 g na cire da lita 10 na ruwa);
- Gwajiyar kayan ado na tumatir (4 kilogiram na albarkatun kasa da lita 10 na ruwa, tafasa yana faruwa na rabin sa'a, sa'annan an yi awa 3 don jiko.) An cire dilution a cikin lita lita 3 a lita 10 na ruwa).
Hanyar hanyar fasaha ta ƙunshi ƙananan matakan lokacin da karamin motsi ya ɓace. Irin wannan matakan sun hada da:
- farkon shuka na tsaba (karshen May - tsakiyar Yuni);
- zabi a matsayin shafin don shuka wuri mai tayi mai kyau;
- dasa kusa da albasarta, ƙanshi wanda tsoratar da kwari ta kashe.
- shimfidawa na bakin ciki, don kawar da mayar da hankali ga yaduwar kwari;
- kauce wa taki kamar taki;
- rare da matsakaici watering.
- peat mulching.
Yin amfani da matakan da suka dace, za ka iya magance kararra.